heir of Slytherin vs heir of gryffindor

[strawberryshaunie]

No: HPFGUIDX 82818

This is my second time posting:) and i'm still very new, so you must 
forgive me if this makes little sense: (I'm a bit of a lurker, as I 
rarely have time to post anything these days). 
this may have already been  pointed out, but Isn't it kind of obvious 
that Harry's probably 
the heir of gryffindor? Apart from everything Dumbledore's said about 
Harry's house (CoS, I believe it was...something along the lines 
of "it takes a true Gryffindor to pull [godric's sword] out of the 
hat"...there's also the fact that James and Lily live in Godric's 
Hollow (I'm assuming GG would have been the Potter's ancestor, as the 
Evanses were most likely muggles). 
 One thing that really stuck out, however, was the fact that Harry's 
eyes, and their colour, seem to be very important ("you have your 
mother's eyes" must have been stated a dozen times). Dumbledore, 
while explaining his suspicions that Harry's mind was being linked to 
LV's, mentioned that something in Harrys *eyes* told him that LV's 
presence may not be as remote as they'd like to believe. (HArry's 
green eyes seem to be the opposite of LV's red...whether this is more 
evidence of Harry being the opposite of the heir of slytherin is yet 
to be revealed?)