Lets see, a lot of people claim Final Fantasy games have girly men with giant swords, lets count.
FF1-6 - They all midgets, so don't matter.
FF7 - yes, clouds is 2 big. Sephiroth on the other hand is just extremely long, by no means would it be heavy.
FF8 - the Gunblade of both Seifer and Squall are both useable, but impractical.
FF9 - Zidane's daggers were perfectly useable, even the double bladed things would be as well.
FF10 - Tidus and Auron's swords are not really that big.
FF11 - claymores?
FF12 - all the weapons are basically good sized. I mean, you wouldn't see me running around with the Holy Sword, but thats just cause i hate holy things, unless used by Ciel(<3)(Tsukihime for those who don't know)
So far I count 1, 2 if you include Sephiroth, but he isn't girly, just has a big sword. The first 6 are all 8/16 bit, so they can't really look girly. The rest yeah, most of the main protagonists are quite girly. I just pass it off as Square and crap wanting female gamers to like the games, and how many girls have you met that want Clouds love child?
Yes, I may be an idiot, some of my facts may be wrong. Honestly though, it makes sense to me, and thats all I give a damn about.