Titan - every tourney a speed tourney, 10 minute blinds and shallow stacks, not really worth any serious investment of time other than for fun. Sat on 3 cash tables the day I signed up for about an hour with no action. In serious need of some high-level props.
Poker Stars - the most ridiculous lack of large scale MTTs you will ever see of any major site (WCOOP excluded). Too much empasis on SNGs. Incredibly slow to fill up at any decent level Omaha cash table. On the plus site, they have HORSE, and they have the WCOOP, which is enough to maybe get them 2% of my time a year. I see they have a Sunday Horse now, so that might get abit more attention.
- the best site by a million miles IMO. MTTs coming out of your ears, starting every few minutes. The standard blind structure is 15 mins compared to Stars 12 mins, with deeper starting stacks than Stars. Sunday Million 5000 chips and 20 mins blinds, makes a pleasant structure. PLUS the only site where you will ever get a decent level Omaha game 24/7.
Doyles - good level of MTTs considering their size. Can usually get a decent Omaha cash game going in the evenings. Nice interface.
Ultimate - OK for the occassional weekender, but not a fan of the interface to be honest