[Tim Budong]

i've been stuck on this question for the longest time, and im gonna suck it up and ask...i feel stupid asking simply becuz if i just ask..then u will most likely all tell me to get it

I own a XTI btw..

i really like the range from my 17-85mm...but it just didnt cut it for optical quality...
so did some searchin...on 4 lens that all cover my needs of

a) at least 17mm wide
b) FIXED f2.8
c) SHARPNESS

the struggle to decide on the following based on pricing from $$$ to not so much $$$. and yes, im very watchful of my monies and dont mind spending for the right product

1. Canon EF-S 17-55 f2.8 IS
2. Tokina 16-50 f2.8
3. Tamron 17-50 f2.8
4. Sigma 17-50 f2.8

as u can see, they all cover a decent range, and can take decent portraits. Before you tell me to buy 24-70 f2.8L...i need some thots, and some user reviews

I have read NOTHING but FANTASTIC AMAZING GLASS out of the canon, on par with the above L lens. Price is concern for being an EFS lens...even tho i dont think im going full frame anytime soon.

but has anyone ever used the above? My friend said the Tammy is yellowish for the colors, but thats one person out of many reviews i read that its great

but yea..
opinions?
im currently leaning towards the tokina..and i hope this post will make or break the purchase of one of them. i've done a month of research and just cant make up my mind becuz well..all the reviews are..good in every aspect. I have demoed every one of them xept the tokina at camera shops multiple times..and still cant make up my mind, its all very sharp!