What would you call it where Lee blitzes Madara by going gates? He outspeeds Naruto momentarily. Or the instance where he and Gai blitzes Haku in Demonic Mirror. Or the filler episode where Gai and Lee blitzes an evil four tailed Kurama. In a pre time skip movie, Lee clearly shows hypersonic speed. All of those instances are canon btw. Heck, Gai was keeping up with Obitos teleportation technique going hypersonic, and with Naruto.
Lee post timeskip is perfectly capable of defeating Sasuke (even though he was not using Ninjutsu), but to outspeed a Sharingan user, is a great feat.
None of the movies is canon, filler episodes are irrelevant, Haku isn't light speed as already stated, Madara was forced to stay on the Juubi and would easily dodge Lee otherwise, outspeeding Naruto momentarily is actually a viable one I'll give you that, Gai was keeping up with Obito but not he cannot out pace teleportation.
Do you have the Lee vs Sasuke feat with you? Not doubting it, I just don't remember it.
HXH is weaker than the big 3, but it's powerscale puts it's top tiers around the mid high tiers of OP, upper high tiers of Naruto, and lower high tiers of Bleach.
Lee outspeeding a Sharingan user is impressive, yes, but Netero's feats are also impressive
Anyway you seem to be missing the point, I'm not saying Guy and Lee lose, nor am I saying they win, I'm just pointing out that it isn't a mismatch, I wouldn't have made the thread if I didn't believe they both sides had a chance of victory.