Windcharger doesn't look much like G1 Windcharger to me. If they didn't call that toy Windcharger I wouldn't have known it was meant to be him. :/
I display my toy according to 'series' - so my Universe Jazz is on my Classics Autobots shelf. Unicron is too big to fit onto my Armada shelf, so he, Primus and Darth Vader/Death Star are on another shelf for planetformers. Also, scale isn't something that I'm really fussed about anyway (and even if I were, the Legends are just too big -- think of the scene from TFTM where Unicron holds Galvatron between his fingertips, and Galvatron is considerably larger than Jazz). So yeah, my Classics Autobot shelf is crowded enough as it is, and I don't see the need to keep both a Legends and Deluxe sized Jazz. Having said that, I do have both Legends and Deluxe Hound. :p I display the Deluxe in robot mode and the Legends in vehicle mode, so I might do that with Jazz if I can manage to find the space... if not, then I'll be selling off some Legends.