Hit boxes? Did you seriously complain about hit boxes? ... ... Ok, may have been a problem in CV1 and CV2, but it was definitely cleaned up by CV3. CV3 has some of the most forgiving collision detection I've ever seen in a game then and now. And only in CV2 did it ever feel slow to me. Jumps were far from clumsy. Konami gave a LOT of leeway in the jumping. You can jump from your heels and land on your tiptoes in CV games. Seriously, what is it about CV's mechanics that make jumping clumsy? The controls were far more forgiving for Simon and Trevor than they were for, say, the whip or bone-tossing skeletons. Those poor bastards were actually programmed to overshoot a ledge even when they visibly land on it after a jump. The one single feature of CV's controls I'll readily grant anyone is the stairs, since Konami programmed Trevor and Simon to move at half speed on stairs (makes sense, though) and rendered them uncontrollable until the climbing animation ended. That was the only clunky feature I ever noticed in an NES CV game. ... Ok, I've also vocalized my complaint about requiring left/right to be held down first when A is pressed or pressing them both at the exact same time without fail; but to make that aspect of jumping more lenient, Konami would have had to sacrifice even more speed with extraneous code, so I can forgive that.
As I've said for the GB ones, that's a whole different story (I think Legends I liked the most control-wise for the GB ones). Adventure's just straight up turned me off of the GB series.
And I"m not sugarcoating with nostalgia. CV2, maybe. CVA I loathe, so definitely not sugarcoating that. CV2 was the one that got me into the series. I played CV1 on the COmmodore and was like "ooh CV on Commodore!" I never played CV1 on the NES until I was in college. I bought CV3 and played it for the very first time after that. I never even knew about it -- I went to the store looking for CV2 and all they had was CV3 so I was like, "why the hell not." Like I said, I played a few times then abandoned it. Everything I say about CV3 and parts of CV1 are based on month after month of studying CV3's code and playing through stages over and over and over and over and over. Handles just as well as Mega Man, imho. If i was going to sugarcoat anything, it'd be Ninja Gaiden 2. But I have a love-hate relationship with that series: I love it so much but fucking hate the games because they're so fucking annoyingly hard for me. And God help you if you jump onto a wall with no ladder.