For quad, I recommend the 1.5 Revolution with an EXP leading edge... If you're flying around obstructions that you might hit, the regular edge (SLE) would be better... But the SLE is so stiff, I don't like it (as an experienced flier)... See the other threads in the "Quad Heads" section of this forum.
EXP is a little cheaper, but if you stay with quad line flying... The 1.5 will go much farther for you.
EXP is slightly lower mfg quality, handles have a crappy foam grip... For a $50 difference (tops), the 1.5 is a way better value.
Also, read the Quad Heads postings about mylar versus ripstop sails.
Sorry, quick and dirty post... Writing from France at the moment.