Every window has its pluses and minuses. If you post in the main area you should get more responses. Many of us here will have some bias towards products that have worked well for us or against other companies for any giver number of reasons, some ligatimate(sp?) and some are not. Some windows work well in some areas of the country while others do not.
Why don't you explain more of your situation, the homes exterior, your budget, colors and options to help us out. How long are you going to be in the home and other considerations to help you get the most bang for your buck.
I service your area for medium to large projects but it is policy on this board not to try and get leads but provide helpful information. I am aware of your environment and will try to help. I am biased toward Infinity from Marvin, Soft-lite, Gorell and a few wood products because I offer these. BUT, I sought these products out as offerings(except the Infinity, they souught us) due to quality. I do not believe Okna and some of the other brands discussed here are available in you area.
If you have single pane aluminum then I can say with 100% certainty that replacing your windows should be at the top of your home improvement list for Cincy.
You should visit energystar.gov for general info and specific info on the federal tax credits and also dsireusa.org to see if any state tax credits are available for you. Kentucky has some yet Indiana does not.http://dsireusa.org/library/includes/in ... &ee=1&re=1