Might even elaborate more on some experiences....
GABBA: Given that I'm usually with the Old Man and occasionally a younger brother it's a walk to the ground from the city where we stay. Sometimes it's a plane down on the Saturday Afternoon (particularly if it's a Sunday Game, it's between 1 hour and 1:15 depending on type of aircraft. Virgin fly about 5-6 times a day, Qantas about 4-5 with 1 trip stopping at Gladstone), sometimes it's drive down which is a 7 hour trip stopping at Marmor (an hour away), Gin Gin (about 3 hours away) and Gympie (about 5 hours away) to keep the kids quiet. If we leave home about 6AM this generally means an arrival sometime around 2-4PM depending on traffic and roadworks. In theory you could get the Tilt Train from here which leaves about 7:10 and arrives about 2:40 with links to the shuttles/trains. In theory you could catch a Greyhound Bus but from experience use that as a last resort!
If there are no younger siblings this involves stopping at about 6 different pubs on the way which frustrate me as I just want to get to the ground. At least one pub (Criterion, in the city on George St) has a TAB so I could put on a few bets. Travel via Vulture Street and the Goodwill Bridge as opposed to the Story Bridge (although if you go that way it's easier to get into the Pineapple which IS the footy pub in town). If it's a night game take a bus home, although I make sure it's the right bus as there was one time where we ended up at Buranda rather than Brisbane City.
CARRARA: Tend to stay in Brisbane for travel purposes (cheaper to get the Airtrain for starters). Travel down on the train from the City to Nerang (about 70 mintues, you'll know when to get off as the Suns fans get on after Beenleigh), straight onto bus to ground. If on the GC earlier I probably would get off later at Robina and have lunch at the Town Centre rather than head to Broadbeach/Surfers.
SUBIACO: Lunch at either Northbridge (the drunken party goers are generally recovering elsewhere) or in the CBD. There's generally footy specific trains so you don't have to remember to get off at WEST LEEDERVILLE as opposed to Subiaco stations. Then pray to God you don't have a seat in the 3-tier stand unless you want to say "been there done that never again". Still better than the WACA experience where it was $50 cab ride from Airport to ground before play, sit in sun all day, then wonder back to city to get bus back to airport for 4 hour wait for the Red Eye.....