out of the GAF, Certainteed, Tamko, and IKO which would you recommend? i use the GAF and never had a problem with them and only hear good things about them. But lately i've been getting alot better prices for the certainteed, tamko, and especially IKO. I just don't know enough about them to make a switch for a couple extra bucks. Certainteed i did hear they were decent. But as far as tamko and IKO i know nothing about them other than i heard the IKO company had some big time lawsuits against them but the person that told me that wasn't positive. so if anyone can let me know their experiences and opinions on the different shingles i would appreciate it.