I know I sound like a broken record, but you really have to cast different rods and decide for your self. Some FFers love fiberglass rods, while others absolutely hate them...and everything in between.
Glass rods are almost always heavier than graphite, and to some, give a feel sort of like bamboo. Not always, but In general, fiberglass rod action tends to be slower (flexes further down the rod towards the butt).
Well over 90% of the rods sold today are made of graphite, but in the last couple of years the several of the rod manufacturers have begun to offer a line of fiberglass rods.
I would recommend you cast both types of rods before you buy. Also I would look at different rod weights and lengths before buying. A 2wt rod is very limited for most fishing, even for small streams. Some of the small stream guys on here that really know their stuff recommend faster 4 or 5 wts and often overline.
Anyway, take your time and do your due diligence before you decide. Good luck.