depends on the spec/talents you use,
but not enough to make a significant difference.
if you're asking, its more likely you're new to tanking. the CC can only use tools you've chosen, i.e. glyph/talent choices.
some CC's can also handle and use active mitigation, i.e. seals, hands, interrupts and stagger's etc. which you can narrow down and spec using glyphs.
gear is something else.
i assume you're new to the whole terminology/mentality of tanking, AskMrRobot tends to make the titles and names of those choices harder to identify or recognise
Icy Veins has a brief explanation,
Protection Paladin Tank Statistics Priority and Reforging (WoW MoP 5.1) - Icy Veins
MMO melting pot is much more brief
http://www.mmomeltingpot.com/2012/0...rging-gems-priorities-and-tanking-strategies/
MoP is currently focused on active mitigation tanking, which means hitting buttons to avoid damage, or standing in one set of fire to avoid another set of fire, taking huge damage stacks on one tank, then swapping it to another tank, and healing that tank too, etc. the "good" option is to focus on haste over other stats, but it's much easier to spec for any other option. because the Control/Mastery v Haste / Avoidance choices in AMR rely on the tier of gear you've already collected as to what will be more useful.
TLDR version is, pre-LFR, choose the hit/exp route first: Control/Mastery.
you want tank gear with mastery and haste for better mitigation
stamina trinkets/enchants,
parry/dodge in any quantity, don't worry about balance or ratio, it has no bearing on survival quite as much as when you can heal yourself.
if you do heroic raid content, then you can panic and do the theorycrafting for Control/Haste.
90pc of these spec choices are based off gear you have already, but reforging is ... specific. for a new tank, you want to passively mitigate as much as possible to make the healer's job easier, and thus, yours. once you have a 10m or 25m role, you can choose to take a spec role in a fight, specific to each boss, i.e. soak tank, off-tank, etc. most times, the tanks will decide between each other who's best for each role, with things like, who can hold that boss, who's better at pulling in adds, who has higher AoE damage, larger HP pool for soaking damage, who handles tank swaps and reading DBM better, etc. practical things. in reality, you'll probably be the off-tank because it's not about merit, but who does/doesn't want to be MT, more often than not.
the spec choices affect BIS and the rankings of gear choices, i.e. parry over mastery over haste over stamina, or vice versa,
but what really matters is the gear you have now. upgrades from the AH/LFR/Heroics will change the pool of stats, making the best of those pieces can be a personal choice about playstyle more than utility. once you have a high enough ilevel, you can reforge/regem/enchant enough difference to make significant changes to play. if you have LFR gear, you'll want to focus on avoidance (parry/dodge) and/or haste/mastery in gear choices, and stamina/speed/dodge in gems and enchants. this is so you don't become the squishy "soak" tank that has high stamina for taking extra large hits, but poor mitigation.
tankadin's usually have a high mastery value which lends itself to a more balanced parry/dodge avoidance build, but once you're geared and comfortable with making mistakes without dying or wiping he group, you can stack haste items over mastery items. haste builds are exceptionally difficult due to the 1-shot nature of tank encounters, you will have to hit more buttons to offset damage and do more to heal others in the group as well as yourself, putting seals on the other tank, healing melee nearby, etc. it's got higher DPS potential, but harder to manage, you sort of have to be a healer and tank to make the most out of it, without compromising either role.
prior to LFR gear, you won't get much to work with, not enough dodge to balance out, not enough expertise to balance out, and often poor stat distribution, and expensive enchants/glyps/gems to buy. stamina's usually cheap to gem/enchant for.
there's 3 kinds of ways to gear any tank i.e.
* hit/exp, for maxing out DPS and vengeance, more important on heroics and 10-man raid content because even the tank's DPS matters when the raid is undergeared. it's the least valued build because expertise isn't a tank stat, and you never really get multiple mobs to kite around the room for long enough that melee hit/exp makes a significant difference. some glyph choices in group healing will make this very handy, i.e. battle healer /
* stamina, for having a larger pool to soak damage from. useful for bosses that use a ton of magic damage or a big burst ability. usually you'd choose this spec in an emergency, or for a "soak" boss role. mostly you'd take an avoidance tank build and reforge/regem using mostly stamina trinkets. it does leave most tanks very squishy and hard to heal, not because they have more health, but because they take more damage, that becomes incredibly hard to heal because every small hit that would normally be halved, takes huge chunks instead of lots of little chunks of health.
* parry/dodge, for high avoidance. there's no real easy way to summarise stat priority, most of the paper doll stats are ... not current, and a handful of stats work as full-percentage points, so the 7.1 dodge vs the 7.4 dodge, still works as 7.0 dodge. Bulwark on parry/dodge unless you use a calculator for reforging, the idea is that dodge/parry are preferably solid percentages, and close to 2:1 ratio. other tanks can get away with a 3:1 ratio due to the boost to parry.
for a melee heavy boss, avoidance builds are better generally, it's easier to get hit/mastery gear (or DPS plate gear) and reforge for hit/exp at lower levels of gear, and reforge the remainder into evening out parry/dodge.
all that said, prot is all about the self-healing. haste, improves the resources needed for active mitigation (self/group healing), mastery improves the amount it can heal passively and actively.
hence control/mastery and control/haste.
