SoT was really charming and certainly my favourite. The sequence towards the end is pure brilliance and was completely unexpected. One of the best modern games ever.

WW is very close, and I liked it far more than some seemed to. The over-the-top angry Prince is intentional - it makes for a very subtle transformation over the length of the game, where he comes to regret his goal of killing the Empress when he realizes they're both in the same boat. Only problem I had was the sometimes slightly too free-roaming nature of the game, annoying due to the crap map.

TT is at best okay. I felt they didn't know what they wanted. Plot is decent but misses the unpredictability of the previous games. Main problem is the gameplay. When it's good, it's perfect, some of the best of the series. But there are so many unbalanced moments, certainly in the Dark Prince parts. And they completely screwed up the perfect rewind mechanic from the previous games. You don't get it for ages, and when you do it's far too limited in use, so you end up loading often anyway, certainly in some of the more frustrating sequences.