It depends what you mean by "good". What are you going to do with it?
A stock Amiga 2000 can't do as much as an A1200 (no AGA, no hard drive, only a 68000 processor, probably an older Kickstart chip, OCS). But an expanded, up to date A2000 (Graphics Card, KS3.1, OS3.9, hard drive, accelerator card, ECS) can be better (and more expandable) than an A1200.
