I have Ultegra pedals and I like them. The only other road pedals I've ridden are Dura Ace though, so I can't compare them to Times for you. The Dura Ace pedals have a slightly stiffer release than the Ultegra (though they do loosen up with use). If you spin the Dura Ace pedals with your hand, they have noticeably less resistance than the Ultegras, but I don't notice this difference when riding (the Dura Aces are lighter as well, of course).

What is it that you dislike about the Time pedals?