Best thing to do is dailies from the machine at bitter core, caergate and all dungeons. then just run dungeons. also do the repeat for killing 5 of the opposite faction. then after that battleground
Well, Caergate quests are a bit hard to do...
I'm a level 25 SW and the first time I set foot in caergate (at level 23), the opposite side was raiding...quite a trauma
However...the only daily quest you might get to do from caergate is the one that involves mobs killing.
I've been having the other daily in my quests list (the one that involves speaking to a NPC located in the enemy's base), and I find that impossible to do, unless you are in a party on a successfull raid.
I tried to get to the opposite faction's base (many times), and even if I manage to do it, NPC guards can detect and kill me even if I'm in stealth.
Just wanted to say my opinion about Caergate.