lets see, so we have something like only 4 grasses in OU, breloom and abomasnow have only one common use. that leaves roserade and celebi.
yup. we have grasses all over the place. do we have good ones? no, but the point is we have them. any good grass type?
abomasnow- 4X fire, 2X fighting, flying, bug, rock, steel
breloom- 4X flying, 2X fire, ice, psychic
Roserade-2X fire, ice, flying, psychic
Celebi (AKA I have 7 weaknesses)-4X bug, 2X fire, ice, poison, flying, ghost, dark
yeah, these all seem good, with only one not having a 4X weakness.
also, thats 15 grasses out of 26 FE, and 7 out of 10 for ghosts. the only FE ghosts not used were sableye, who has horrible base stats, and a crap ability, and banette, who is in desperate need of en evo.
so more grasses are used total due to there being tons of grasses to choose from, but more ghosts are used out of all usable ghosts.
EDIT: hey gormenghast, i only counted 10 ghosts. did you include giratina or did i mess up.