I'd just like to point out that, while Gen V got rid of TMs that I, and probably everyone else else, never used. I'm of course talking about Bullet Seed, Water Pulse, etc.
However with that we have the loss of some usable TMs. Of course, they can still be taught to a pokemon in Gen IV, then traded over to B/W, but this won't work on Gen V pokemon, or any older pokemon with a new special ability of egg move that would make you obtain in in Gen V. Here are the ones I'll miss most of all.
TM19 Giga Drain- had its power boosted to 75. I remember this move when it was used more, in the RSE era. I was hoping for it to make a comeback with its boosted power, but I guess not.
In its place we get Telekinesis, which apparently makes the target easier to hit for a few turns. Just a few. I fail to see the point, as Gravity can do this as well.
TM47 Steel Wing- Not exactly too concerned about Iron Tail's loss, since I didn't like the inaccuracy of that move. This one, though I won't miss it nearly as much as others, is still a half-decent Steel type move for some pokemon such as Empoleon. I bet none of you liked this move much, but I did. I more want to ask what Ankle Sweep is. Low kick variation? I have no clue. Probably not.
TM51 Roost- Oh yes. Roost. Now of course we can't give out beloved healing move to our favorite flying type pokemon. I probably am disappointed by this one the most. And its replacement in Side Change. Which I still don't know the effect of.
TM58 Endure- There goes the classic Endure/Salac/Reversal combo that was ruined by quick attacks anyway. Although, Freefall might actually be a usable attack, that is, if the target pokemon is not allowed to switch or anything on the second turn. So it's like Fly without the ability to switch or Protect? Okay.
TM59 Dragon Pulse- Looks like Special dragons are left without their "reliable special STAB" and have to resort to Draco Meteor for the most part. I did get a few uses out of this move. But Devastate, isn't that that 30-power move that only destroys the opponent's berry? Knock Off removes the item completely, this move should do more than just destroy a BERRY.
TM72 Avalanche- was a great move for pokemon like Swampert, among many others. a potential 120 BP Physical Ice attack was what we needed, now its replaced by an electric U-turn...which actually could be useful, possibly for an electric pokemon to switch out on Gyarados and avoid getting hit by Earthquake, should Gyarados survive the attack.
TM76 Stealth Rock- While I mostly dislike the loss of good TMs, I am SO GLAD Stealth Rock is gone. Hopefully now it won't be spammed so much, and will be used only of pokemon that learn it by level-up or breeding. I don't know about you, but this was the move I hated more than any other move, after it knocked some of my favorite pokemon like Charizard out of competitive play.
TM79 Dark Pulse- When I thought Sazando would have a good Special STAB. Oh well. Goodbye to special STAB for anyone who doesn't learn this by level up. and its replace, Ice Breath? Does that say "always scores a critical hit"? Then what's the point? The power is only 40, so that's even a max BP of 80. Ice Beam is more than that, and can achieve 190 with a critical hit. You could argue that "critical hits hit through defense boosts" but I'm not sold on this one.
TM82 Sleep Talk- even though I didn't use this much, I would have liked to. This will hit competitive battling hard, along with Roost and Stealth Rock's loss. Its replacement is Dragon Tail, which is like Roar + relatively weak attack. But only 90% accuracy. Then again, it probably doesn't have reduced priority like Roar does, so aside from the imperfect accuracy it may be useful.
And that's all. If anyone else has any likes or dislikes about the TM change, please feel free to add.