Hmmm, what can I say. Never realy liked or disliked B/A. (Still better than B/S and B/R though; Riley? Who's Riley?). It's mostly because of Angel who always becomes such a whimp when he is with her. I also don't like how the relationship started. He gets her on a golden plate (in the wrong way; something you should have adressed to) and I can't remember ever saw him being grateful for that.
Becoming II, her pushing him into Hell never worked for; not after what Angelus has done. (Her speech in Prophecy girl to him and Giles worked much more). You turning it into a plus. Hell, she couldn't even kill him right after he had killed Jenny. (She didn't have a stake with her and Kendra had to give her own!)

That said, are the moments that I do like Buffy/Angel. Oh, yes. Only after Revelations. Until Angel agreed with Buffy's plan to make Faith look black. (That's what I mean with being her whimp). And him draining Buffy in Becoming is not what I call a plus. She's a fool for his love, but is that a reason to like a ship?