Now that I have them all I plan to set them free, I just have to choose an order to do so. I want to save the best to last, which will probably be Jazz as he's also a long standing favorite.
Any suggestions?
Jazz is certainly my favourite of the ones I have, so a worthy "last" on your list.
I'd move Leadfoot closer to the top. Very disappointing figure IMO. The twins are quite solid, certainly better than any of their deluxe counterparts.