BA 744's
 

Whats the best row to try and get in economy for max legroom on these?

Cheers

Row 55 at the back (obviously) on either side. The fuselage begins to curve and there's plenty of room to stretch out.

Also the emergency exits but I don't know what rows they are.

ROW 28!!!!!!!! (i'm pretty sure anyway!)
Always ask for this as it's the overwing emergency exit. Quiet too, but u can stretch your legs and still have almost a metre to spare!!!! in the middle 4 seats I could stretch my legs out and just about touch seat infront (im 6 foot), downside is because seats infront are so far away, you cannot raise armrests to lay out if there aren'y many pax onboard, the table and monitor are stored between the seats (as are the forward bulkhead seats!).