I am an avid Gundam model collector and usually paint them with air brush.

These are the Seed models I have:

HG 1/100:
Aile Strike
Buster
Duel
Freedom

I got Strike and Freedom before the Master Grade ones came out if not I would have bought the MG ones. Going to collect all the Seed 1/100 series, so I need Aegis, Blitz and Justice, and Providence. Too bad the 3 Earth Gundams were not made into 1/100 kits, but they don't look that great anyway.