I have owned all three.
Kept Whitewater by far the shortest, didn't keep my interest like I thought it would, it's fun but not a keeper for me for the money.
As for mousing, if TMNT had that pf and rule set , it would be worth more than funhouse. Brilliant game design and rule set, one of the best sys 11. Owned one three time and always miss it....
Taxi may be the best sys 11 in my book. Great rules, layout, theme, art, callouts..
For me I look for best value often, I think here it's taxi. A can't miss.