Lakers! I don't like Miami and I couldn't care less about LA.
For the life of me, I can't understand why a Celtic fan would hate Miami more than the Lakers. Is it a generational thing? Do you mind me asking how old you are? I wonder if younger Celtic fans despise the Lakers less than they should. I'm a mere 30 and yet I recognize our mild squabble with the Heat is irrelevant compared to a deep-seeded lifetime rivalry with the Lakers.
I think it's generational. The media is what makes it. I'm pretty young, yet I still hate LA more than Miami.
With Miami, it more of a rivalry between players (Rondo, Pierce, KG, Ray, LeBron, Wade, Bosh, I could go on), but with LA it's just hatred from a rich history of competition.
God I hate the purple and gold.