Played many other MMOs, I found this the most fun. I don't know what it is about an entire squad in a Galaxy flying over enemy territory and then dropping onto a tower and then proceding to take it and defend it, but I just found it so much more fun than any other MMO. Others were full of grinding while in this you could be useful what ever level you were.
I hope it's still as good as it was but I guess it won't be as epic. Attacks on some of the big towns were rather epic with everybody playing a part. Hope I get selected, signed up for it to be honest but think I'll keep reading/posting here seems decent guys, long time since I played it but the memories I have are rather awesome.
You just can't compare any other MMO to when you have a massive battle between two sides in Planetside. You have the few BFRs on each side attracting all the fire while the lighter vehiciles charged and bombers/fighters flew overhead. God, I miss it.
PS If you like the game, then you'll realise how small 5 hours a week is. I remember battles lasting hours at a time with sides going back and forth.