Hi guys!I've to choose between these two Nikon lenses...

28mm f 2.8 or 3.5...tomorrow I've to give the answer to the seller if I really want one of these glasses.
It's not an important element to me the brigtness of the lens.If the 3,5 is better than the 2.8 I'll buy it!...I'm waiting for opinions and advices from you please!Don't let me alone in this choise please!
Thanks.Regards