Michellin Pilot Sport 3's would be the obvious choice as theyre a replacement for the original Pilot Exalto 2 tyres, theyre pretty good although i found they felt a little softer but i never tried the XL versions.
I run Hankook V12 Evo's and for the money i think they are superb. I know BigDave is running Falkens and rates them quite highly.
It really comes down to personal preference and budget, i was considering trying out some continentals next time im due tyres as always had good results with them in the past!
Michelin PS3 through tesco/black circle (check ATS first, they often do 25% off michelins). W speed over V, ?? apparently ?? the side walls are stronger??