no mention of dhalsim? I honestly think he teaches decent execution with all his directional inputs, tiger knee teleports etc. and you have to be on point with him, you gotta make sure you can execute on reaction a lot.
Nah, Dhalsim doesn’t really improve execution other than perhaps doing half circle inputs from a crouch (e.g. LK Slide - LP Yoga Flame) what Dhalsim teaches you very well is spacing and he helps improve your reactions. But execution wise he is one of the easier characters. TK Teleport / IA drill over fireballs is probably the only particularly difficult stuff.