"when they are giving in to all the misspellings of privelige, you have to ask, are they unbiased?"
It's not Nominet making the decisions, but the appointed experts. Most of the experts are practising IP lawyers, so they're professionally acclimatised to serve big corporations. That said, imho the real problem is that the drafting of the Nominet DRS makes it relatively easy for trade mark owners to get domains transferred - much easier than establishing a case of registered trade mark infringement, for example.
"i know there's icann etc, is it easier for the bigboys to win .co.uk battle ups than tld battleups?"
By my (quick calculations):
WIPO (UDRP) complainants are successful in approx 83% of decisions (using stats since WIPO began handling domain name arbitrations). NAF complainants have a similar level of success, I think.
Nominet stats shows that in the last year complainants were successful in 77% of Nominet DRS decisions.
However, the lower Nominet figure shouldn't necessarily be taken as indicating that Nominet is more respondent-friendly. Differences in the procedure, especially Nominet's mediation service, will skew the stats.
"if you own privelege.net (i don't!) what sort of battle would rbs or whoever have to get it off you? would they necessarily win?"
RBS would have to prove bad faith, which would depend upon the particular circumstances of the case. It would be harder to show bad faith if Privilege is a UK-only brand (?) than with the .uk domains.
Seq.