I would use:
Blue: +30 stam
Yellow: +30 stam
Red: +30 stam unless used for meta and hits a socket bonus of +9stam or +12 stam then use the expertise/stam or dodge/stam depending on personal preference/current stats.
If you do gem for socket bonuses then yes, the gems outlined are probably the best, and we'll see what ICC gemming requires, but for now I still advocate stam.