I have an LG BD390 and an Oppo BD83... I bought the Oppo first and it's a truly great machine, but I don't think I would have bought it, had I bought the LG BD390 first, that's how highly I rate it.
Blu Ray performance @1080p/24Hz is as good as any. Load Times for Blu's is on par with Oppo and PS3

and it's such a multifunctional machine, that feature wise it outplays the Oppo.
Fair enough, SD scaling is not as good as the Oppo (which other BD is...?), but much, much better than the Panny BD30 (I've had 2 of those) and in absolute terms the Oppo has the edge over the LG, but then it cost me nearly 400 quid more.
As I said, had I bought the LG first I probably wouldn't have bought the Oppo