+1 for Cha La Head Cha La
Whenever I recommend Fullmetal Alchemist, I use this intro to do it. The music and animation come together so well here, and even through every other FMA intro, I think this one stands above the rest. I detest a lot of things that were handled in Brotherhood's initial few episodes, but this always gets me hyped, regardless.
I still don't think MHA has come even close to finding a better OP song than Peace Sign. This intro is what made me want to watch the show entirely. There's not much nuance to the content of the intro here, but you get a ton of action synced to a good beat, which is perfect for this series.
A far calmer entry here, Angel Beats' intro song is fantastic. Each episode's OP also gives a snippet of scenes from the upcoming episode, which is a nice touch.
For Studio Bone's animation track record, this intro starts off incredibly basic. Part of an intro's job is to get the viewer hype, which this one does, with amped music and striking art. While the action isn't frequent here, it flashes inbetween the more somber moments to stand out even moreso.