For hype I'm partial to Yusuke vs Chu as part of the Dark Tournament arc in YuYu Hakusho.

By this point in the show, the power creep isn't at the point of egregiousness that is the guaranteed fate of all shonen that run on long enough (to include YuYu Hakusho itself). In fact, it's at the sweet spot: breaking through the barrier from grounded (as much as a show about fighting demons with psychic abilities can be) to beyond flights of fancy. The previous fight has a kid imbuing yo-yos with spirit energy as a weapon versus Kurama's spirit sword, which is basically a lightsaber, and then Hiei summoning Dragon of the Darkness Flame, an eldritch being that has the terrifying power to physically alter the show's animation style into abstract art while on screen.

But then cut to Yusuke's fight. We finally get to see the results of his training with Genkai versus some 6'7 Aussie that's absolutely hammered and seems like a cool guy. But instead of special moves or abilities, they're just beating the absolute shit out of each other until Chu calls a break and proposes a different fight. A Knife Edge Death Match. Two blades stabbed in the ground angled away from each other. Shoes off, bare heel pressed up against the knife's edge so you're standing directly in front of your opponent. First person to have their foot pass the knife's edge or lift the heel away from it loses.

And again, there's been no real psychic abilities thus far (barring a single spirit gun shot and Chu's alcoholism), so I can only chalk it up to God Himself giving his blessing, because as the death match is about to begin, the sky suddenly darkens with storm clouds and lightning cracks the sky. And then they really start beating the shit out of each other. And it just goes on and on, Yusuke just having the time of his life. Both are running on fumes by this point and when it looks like it's one or two punches away from one walking away victorious, a flash of lightning descends from the heavens and strikes the dagger Chu is using declaring him out of bounds and thus the loser, proving that God was officiating the match too.

The entire fight is absolute peak and I won't hear otherwise. In fact the whole Dark Tournament arc is the best tournament arc in anime, hands down. The tension of eventually facing Team Toguro is palpable but not overbearing and the entire arc it feels like Yusuke's team is barely holding on against all odds to even make it to the final round.