I've just finished Prof. Layton and I liked the variety of the puzzles. I'm waiting to get Zelda and Millionheir at the right price on fleabay and I'm not sure I fancy Hotel Dusk, the reviews say it's a bit slow going. I like the look of Sherlock Holmes: The Mystery Of The Mummy but its not out yet and I'd rather get second hand. Any others I should look at?
I already have some brain training and Tetris, I can't do picross and I really enjoyed Super Mario Brothers (but also found it infuriating).