Hello!
Could you please tell a good constant party of 9 (melee) ?
Crafter and Spoiler are fix.
I came up with this one :
Bishop,EE,BD,SWS,WC,Crafter,Spoiler,WL,and one more DD ..

I have a few questions about this one..
Prophet or WC is better? I'd prefer prophet cause PoF doesnt make you slower unlike CoV...
Does WL fit this team, and doesnt he/she take away the party's XP ?
Thanks in advance for the answers !

The best way to roll in IL overall is an archer party. Works at both pvp and pve, but as I can see you wanna focus on pve, since you got dwarves.

Well, if so, you should do the following...

Replace Bishop with SE (You don't necessarily need an ultra healer for pve, plus recharge is sweet in parties with dwarfs)
Replace WC with PP. (zerk 2 is the main reason. Something that WC doesn't have in IL. Lack of VR doesn't matter since you have SE.)
WL is ok as long as you do aoe imo. However I'd prefer destro for that job in IL. Also, if you go for aoe forget about what I mentioned before. You'll possibly need EE/Bishop/WC.

why 2 dorfs? i understand spoiler, but crafter?
get any other dd instead. And managing 9ppl party with pp is slow and eats much mana, but zerk is great for pve. although CoV>PoF, its big difference, i'd go wc
Edit: as Ruud said, you don't need bish so take SE

bishop,ee/se,SWS,BD,WL/PP,crafter,spoiler,and 2 more dd like archers
can this be a decent PVP party and still be good at farming ?

Dwarves are worthless in mass pvp in IL. If you mean small pvps, then it might work ;p