Thank God your getting the Legends, its 110% the correct choice.
I have both AZT90III White/Gold and Air Legends Blcak/White Legends, 90s our real comfy and have a v good touch for synthetic but the Legends our so much more comfy, feal more menuvarable and have a great touch, probably the best touch ive had in a boot.
But mate get them fitted to the length of your foot, i went for width stupidly cos the 8.5s were a lil to tight for my liking but they mold so well.
I gt 9s currently but will but my next pair after i wear these out in 8.5 (Half size smaller)
Im also in the same predicamnt about colours, i recommend White/Blue or Black/Silver. Buti cant pick between them.

My Bro has Silver/Black astros they look sweet, but ive played with someone who has White/Blue Legends there also awsome.
But go with what best suits your kit imo.