8 and 9 are considered exit rows on the 757. 9a, b and c are on the left side of the plane (facing forward) with door2L immediately in front. 8d and e are on the right side of the plane right next to door 2R. 9f does not have a seat infront of it.

any of the other seats in E+ are good, except row 14 which has limited recline.

try seatguru.com - you can lookup aircraft by carrier and get a seat map with explanations of good, ok and bad seats