TIP started in 1994 and set the standard for the proper old crusty raw acid washed goa trance. It ended in 1998 and just before it's winding up it gave us a hint of psy breaks with synchro and snake thing.
On the other hand blue room started just a few months after TIP and in the beginning was also pure old crusty goa trance but more refined. As early as 1997 the label started exploring musical territories no goa label dared before - breaks, idm, techno, non-goa trance and non-goa downtempo. Just watch all those CDs from 1998 to it's end in early 2001 - all but goa, all but the same artist, all but the same musical concept. I have them all.
I vote for blue room, which is my favourite uk label together with TIP and dragonfly.