If ergos aren't a concern of yours then I would give the nod to the RC... Anyone who has ridden an RC knows that the weights published in magazines etc. are jibberish and the bike carries it's weight well. It feels quite like a 929.
The v-twin is such a better street machine than an inline in my opinion. The sound, looks and the fact that not everyone has them is reason enough in my book.
From a performance standpoint, they are neck and neck. I don't think a stock 929 will get around a track any quicker than an RC. Plus the 929 isn't all that as far as looks go IMO.
A friend of mine has an RC and with 5300 or so miles it's every bit the bike it was when it was new, so considering yours would be essentially new I would jump at it. But then agian, what would a new RC cost?
I'm sure you will be happy with either. It just somes down to what you like, looks and engine configuration. I personally think v-twins are the nuts.
'00 VFR 800 - TBR CF High Side Exhaust
'01 R1 - Full Akrapovic Ti Exhaust - Ivan's JetKit - Dussault Tail