No, you're totally right. Maybe it's because Buffy is so arc-driven compared to Angel.
Yeah I definitely know how you feel. Angel, IMO, just didnt have those iconic episodes the way Buffy did. Nothing in Angel really stood out for me. Buffy, on the other hand, I know from the inside out.
Angel's story arcs aren't as poignant as Buffy's are. I think it's as simple as that!
Not for me.
I think it might have to do with which show you prefer. Like if you dont like Angel as much youre not going to remember it as well. I love Angel more then Buffy so I know it better. But I know Buffy really well too.