I played both World of Warcraft and Lord of the Rings Online last night. Logged on to WoW to check the mail and the AH, but got invited to a group. Didn't really work out, we only killed the first boss of the instance before we split up, but was fun anyway. Then I switched to LotRO and got my captain to level 10. Yep, he's better with a pet. But I never liked pet classes all that much. And having a "pet" that is human and is controlled by a pet action bar full of animal symbols somehow disturbs me. I'll try it a bit longer, but I don't think this captain has much of a future.
And playing two games I ended with the feeling of not having gotten much done in either. Can you mix MMORPGs, or should I cancel my WoW account?