Anyone else focused on trying to max-skill all of the 1* units? I'm already working on Paine, and will likely go for Stitch as well. I'm keeping numerous Wakka around (going to keep one at 6*, no-skill) and a whole bunch of other ones (Selphie, Yuna, Pence, Hercules, Hayner, etc.).
Is it worth skilling either of these up? My inventory is only at 70, so keeping around all of these copies while I level/evolve them is a little much...
Basically, which "free" 6* units would you recommend to max-skill? I know Paine/Stitch are great, but what about the rest? I have Vivi already, but I'm not sure if I should skill-up the other "increase strength" units or not.