Only problem with Action is they do skimp on detail a bit. But they do have some other extra features which almost make up for it. Action are where Minichamps were late 90's which is no bad thing!
I have the Indy 500 winner which is a bit shoddy (still worth having). The Champcars they did were pretty neat though, like that 99 car you got V! (I still need that BTW....). Although later on, they got a bit lazy and didn't change the chassis details.....I think the 2005 cars they were still using casts from 2000.
Minichamps perfect the cars nowadays, I can't wait to see the job they have done for the chrome Macs!
Hot Wheels, I shall not speak of them.
