Wow you're lucky I can't get this bot to run longer than 8 hours, and usually after a few hours I get some weird runtime error. Channing can you post the deck the attachement didn't work.
Here it is, quite an expensive deck though. I also use no spells in any of my decks, because they are always used stupidly (even the aldor peacekeepers are used stupidly, but they're very efficient since they're still 3 for a 3/3 that at least makes something a 1/x). The low cost taunts are there because late game, when they come out, they can take a hit that might kill your better creatures. The owls are nice because they typically silence taunts. All other creatures are either for card draw or just very efficient. Oh and raid leader isn't great, but typically you'll have a few creatures out, and when one is dropped for the cheap 3 mana, it can turn the tide or add lethal. If you don't have the legendaries, you can just replace them with the Boulderfist Ogre, they're the most efficient 6 drop neutrals.
**Note** Obviously there are much better cards out there than the ones in this deck, however most of them have some kind of battlecry associated with it that typically will not be used efficiently. So your best bet is to use simple creatures are just overall efficient (harvest golems, chillwind yetis, shieldmastas) or creatures with non targeting abilities (Ragnaros, Cairne, Illidan, raid leader, stormwind champions, etc). For the deck to be good, you should not look for synergies, you should keep a decent mana curve, you should limit your spells (or cut them out completely), and you should always ALWAYS go for the most efficient creatures.
With this deck I was able to achieve a constant 45-48% win rate. You'll have to take my word for it because I already got the paladin to 500+ wins and therefore I will spend no more time on him. I am currently working on my rogue who is up to 222 wins in about 4 days. The deck I used for her was roughly the same, I will provide it later.