OEM. Period.
Although Luk is a decent clutch, too.
While you're in there...
Check/replace rear main seal.
Check/replace tranny input seal.
Throwout bearing and pilot bearing are a must, IMO.
Check for play in tranny input shaft. The input bearing could be bad, but it's not too likely.
Check the new clutch disc on the input shaft prior to installation. Might be excessive wear on the shaft, and this is a good way to check. Also, grease the shaft prior to install to prevent future excessive wear.
If your oilpan gasket is doing anything worse than weeping, this'd be a good time for that too.
Also a good time to replace tranny mount if it's bad.
I always do a rear main seal whenever I do a clutch, just cos. Some others don't. It's a piece of mind thing unless yours is actually leaking.