Actually you've already listed them for me in order of preference! The jigsaw is my favourite puzzle to do on HOL and if any classes have that option for homework I usually do that right at the beginning of term and save it on my computer until that assignment is reached! Being a numbers person I love a good sudoku though I sometimes get a bit bored if they're too easy. I like too do a word search too but it's my least favourite of the three, especially if we're not given a list of words.
5 scales (September 2017)
How about: Crossword, Jigsaw, Bridges?