A slightly different take...
I can't comment on their slots, but Microgaming's single-hand video poker has to be one of the worst games I've ever seen. (Ok, the Atari 2600 has worse graphics... but only barely.) Where did they get those "cards"? Yeech! Square cards?!
RTG's multi-hand video poker isn't that great, but their single-hand game is very nice. At least the cards really look like playing cards, there aren't 1500 mostly-useless buttons on the screen (the infrequently-used controls are hidden behind a menu), the cards aren't the size of elephants (square-shaped elephants, even!), and their interface doesn't look like it was designed by a manic-depressive Windows UI designer on holiday from Bellevue. I'd even rate RTG's multi-hand game graphically better than Microgaming's single-hand game.
To be brutally honest, Microgaming's overall interface is stinkaroo awful, so bad that I can't bear using it. I'd expect simplicity from an online casino, because there just isn't that much that needs doing. And I'm far from a "stupid user"... yet I had a lot of problems even figuring out how to deposit money!
I was going to blame the most obvious look-and-feel issues on the fact that I use a large laptop display and their software insists on running in full-screen mode, but that's only a part of it. It's just an overall chunky, clunky design, at least the video poker portion--but I wasn't happy with their blackjack games either.
In terms of the software I don't have any complaints with RTG. It's simple, cleanly designed, attractive graphics, and easy to use; exactly what I expect from an online casino. It doesn't have a lot of features, but that's OK with me.
It's a shame, because I know 32Red is rated very highly around here. I certainly have nothing against them, but there's no way I'd want to spend time playing video poker with their software.