You have some things I hadn't considered before, but on some points I must disagree, or at least question.
Mainly, SW: Pain. True, it's always 1 for 1 trade, but it is often a card that will open up possibilities or allow you to deal with something that's otherwise difficult. Say, a Mogu'Shan or Sen'Jin. Instead of having to push through those low-attack taunts, you can remove them and trade efficiently with your other minions. It's situational, but often nice to have.
Divine Spirit, yeah, it can give your opponent a 2 for 1 if he uses hard removal. But that means he has 1 less Polymorph/Assassinate/etc. to use against your other minions - like Sunwalker, which is difficult to deal with otherwise. If he doesn't have any of those, he has to deal with a 1/6 Cleric - allowing me to draw multiple cards. Though many people have said that Divine Spirit and Inner Fire are generally not good cards in ranked, I've often used them for a great effect.
I suppose I could drop one Mind Control. I do like having one on demand in most cases, though. Very many players like to play big Legendaries, and MC'ing a Ragnaros can turn the game around in a flash. I think I'll try running with one, though.
Mountain Giant - it's the only really big card I have, and I think it's got great synergy with Clerics. Dropping a 8/8 on turn 4 or 5 is golden. It's often good for the cost and at the very least it's going to draw some fire which will be resources spent for my opponent.
Azure Drake is a card I added because I thought I needed a 5-cost body to replace the Twilight Drake I used to run. I like the draw and the spell damage is sometime useful.. however, I absolutely see your point. I could replace it with another Thoughtsteal.
Mindgames and Mind Vision are some of my favorite cards, although I've been thinking of replacing Mind Vision with another 1-drop minion, maybe an Argent Squire or something difficult to deal with early-game. Midngames, however, is amazing. I don't think I've ever drawn a bad card with it, and sometimes you get something that instantly wins you the game, like Ragnaros or simply a random 6-mana drop. I think having a chance to win the game for 4 mana is a chance worth taking.
So, in short, I can see many of your points, but I don't really agree with most of them, simply because I've had such different experience. Some pointers, though, I think are very much worth consideration, like dropping Drake, second MC and Mind Vision. Cheers for them.
EDIT: After some consideration, I've decided to drop Divine Spirit like you suggested. PW:Shields are enough buffs, I suppose, and they're cheaper and allow for a card draw.
Edited by Noitatohtori on 3/22/2014 1:10 PM PDT