Comparing f-zero and wipeout speed is very difficult - arguably f-zero is faster but that doesn't make it more challenging/rewarding - more exact control/placement required in wipeout and under the faster speeds it is just as if not more challenging. Not mentioning zone mode either..
I disagree on the controls, personally I love both styles (the heavy response and air brake mastery of WipEout and the smooth airbrake adjustments combined with the split-second twitch precision of FZGX), but to say that more exact control is needed in WipEout is a bit puzzling, to me it's just the opposite, and I've mastered the fastest speed settings in WipEout 1 and 2097 (I have Fury too, but it just hasn't interested me as much with all the other games around, I do think it's great fun though). Just hop on to SOLS (even with the default Blue Falcon) and find me the same sense of speed / urgency and precision control in any WipEout track and I'm more than interested. That's not to say that WipEout has no sense of speed or urgency, I think it does, and that's why I love the series, in my experience, it's just not at the same level (then again, what is?), but I'm very interested in seeing your examples.
I'd say that F-Zero GX has overall a more uneven track selection than the WipEout series, but when it comes to the hits, it's F-Zero GX for me. I'm mostly a Time Trial gamer.