I think both have got potential. But I've only lived in Queensland for two years. There's people on here infinitely more qualified to speak on the subject.
It certainly makes sense to play a 'West Brisbane' side out of Lang Park. It's on the same train line as the Western Suburbs and Ipswich, and express trains could get people to and from the venue very quickly. The 'West Brisbane' side would, if marketed right, soak up alot of the latent RL support in the rest of Brisbane, who don't really have an NRL side because they dislike the Broncos.
Alot of people argue that the Sunshine Coast has no real 'identity', and that it's really just a collection of towns steadily merging together (Alot like the Central Coast in that Respect). Now that they are going to have a unified council, I can see a Rugby League side in the region giving the area an identity (Think of how the Sharks, along with Cronulla Beach and a few pubs like Northies are the Shire's identity). If done correctly, I think the whole region, and even parts of Northern Brisbane like Caboolture, would get right behind it.
My general assessment of South East Queensland is that is in DIRE need of atleast another Rugby League club. Both areas are attractive in my opinion and both should have teams when the TV deal after the next is determined. There's some data suggesting that Brisbanes CBD is on track to become more important than Melbourne in 20 years (I doubt it. But still) It's madness for the NRL not to lock up such a fast growing region and ensuring that AFL doesn't make up any more ground in the region.
