Welcome to Flyertalk, vishal407. Not having sampled New Club World or First Class myself, I am not qualified to advise you except in the capacity of an airline employee! (Mrs Bealine and I usually travel with "A N Other" airline because BA's staff travel allowances are not as good!)

You should have a very pleasant experience, whether in the luxurious "J" cabin or the exclusive "F" one as both classes should give you very high standards of service.

From the airline's perspective, Club world passengers are likely to hold quite senior positions in their workplace - Board Level in smaller companies, General Manager level in larger ones. THe First Class cabin will possibly contain High ranking diplomats, Royalty, Government officials, the Rich and Famous, Large Company Board Members etc etc, so the service is certainly top-notch! Indeed, it's not that many years ago that the joint of meat was actually carved alongside the passenger's seat!

It depends on what you want. Check out the differences on the BA web-site. I would suggest that, even if Club does give more "bang for the buck" First Class is a truly once-in-a lifetime opportunity not to be missed, especially as British Airways is one of the handful of carriers that still has a true First Class service! (There's no telling if Willie Walsh or a future CEO would axe First Class altogether in the future, so if you have the opportunity, I would ddo it!)

Whatever you choose, I hope you have a truly fabulous time!