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I've got an active sub to Rift but hardly ever login anymore because I've lost interest... however, the game isn't bad as far as this kind of game goes. Level 50 PvP is all about gear and level 50 PvE is all about grinding so I don't recommend rushing to the end unless you really enjoy grinding.
One great way to enjoy rift is to level-lock your character at the top of your level bracket before hitting 50, gear up and just stay there enjoying PvP that is more balanced than level 50 PvP (yes, it's even more balanced when you are 9 levels over your opponents and vice versa than level 50 gear vs gear).
You can play Rift for FREE here: https://rift.trionworlds.com/account/reg/account-registration-short-flow.action?experience=lite
There is one big limit, though... you cannot level past 20 on a free account.
So what can you do with a level 1-20 character? Level lock at 19 and you can run two dungeons (Realm of the Fae and Iron Tombs) as well as PvP in the 10-19 bracket.
It's much easier to do this in Rift than WoW because it's free to level lock in Rift where WoW's level lock requires 10g... and 10g can be hard to earn on a trial account before hitting level 20. (At least it was hard to do in WoW the last time I tried, which has been quite some time now.)