zaphod's referring to the ability to lift pieces over a short wall of blocks. This makes 20G more newbie friendly but it contributes to the horrors of infinity. That aside, I'd say ARS is better for fixing misdrops because it's level orientation states allow tetrominoes to sneak under overhangs without the need for walls, making it quite modular. Though SRS has a more powerful wallkick system, this actually works against misdrop fixing because tetrominoes fly all over the place if you don't position the pieces properly or if you don't create the required walls to take advantage of the wallkick behavior.
Unless a game implements "finity". Here are two ways to temper infinity: Limited resets per piece (Ti World does this) Limited total lock delay per piece (I think TDS does this in multiplayer, and so does LJ Rhythm over a five-piece window)
For Tetris DS it's such a long delay it might as well be infinite. Personally I think step-reset is just the best way to go for 20G.
