Re: HM Moves
Up until DPPt, Flash was my most least favourite. You'd have to use it every time you transitioned rooms in a cave, and even then it's rarely needed, for a few areas in the games. Cut and Rock Smash were just as annoying. I'd much prefer that once you cut a tree or smash a rock, that it would STAY cut or smashed. Defog too, for the same reason as Flash. I don't know why but Rock Climb also got on my nerves, probably because it's pointless in battle just like the rest of them.
Surf and Fly are the only HMs that I remotely like and find useful. Surf makes a great move for battle and Fly gets you around places alot quicker than the Bicycle, Running Shoes, or simply walking.