The best brit-pop band when it comes to guitar is deffinetly Sued... that's a point, Sued were around during the brit pop movement, but they may have been late comers...
The blur/ Oasis thing only scratches the surface...
The Baggy movemet? That movement was ancient, it's the "stone roses" (amazing band) and the "happy mondays", and lots of other groups even including "culture club"!!! Basically it was the ecstacy (the drug) fueled era during the 80's (by his own confession, the guy from the happy mondays used to sell ecstasy to off-duty sailors, before the happy mondays really got going!!!).
Pulp, and Sued kind of brought intelligent song writing to brit-pop... oh yeah that reminds me, Elastica were around too, but they're a bunch of plagerising fools.