Yes, Capcom is the king of tight controls IMO.
But you can have some precise controls without being just tight... Quackshot's gameplay, for an example, has some slippery feeling but the controls are still very precise (for me it's unlikely to miss a jump in this game).
Most SNES players have some difficult with many Genesis games due this slippery feeling... Generally speaking, the best Genesis side scrolling platformers are fast/very fast and I don't think that controls like SFC's Rockman & Forte (slow paced game) would fit... You must consider gameplay's speed when you're judging controls. Very tight controls are great when you are playing a slow paced game (most of SNES titles) but they will not be necessarily great for much faster games (most of Genesis titles).
But some games just have bad controls... You're right about Virgin's Aladdin IMO, 'cause sometimes their controls are very frustrating.
However, I think you mixed bananas, apples, oranges and compared them:
1)Virgin's Aladdin was programmed by the same gang that made Earthworm Jim and Sega CD's Terminator (whose controls I just love).
Aladdin was the second game by them (just after Global Gladiators), I think they made better controlling games after Aladdin.
2)Virgin's Lion King was programmed by another gang, 'cause the former fellas went out to create Shiny Entertainment.
These new guys were not so gifted IMO, so Jungle Book and Lion King had just average collision detection and controls. Still, Genesis version of Lion King controls a bit better than SNES's (this version has more very frustrating parts for jumps) IMO.
3)Mickey Mania was done by Traveller's Tales, using the very same Puggsy engine... Great sound and graphics and some bad controls. But Mickey Mania has better controls than Puggsy, so you can imagine how slippery and imprecise they were at first...
