, 12:54 PM
Technically all of these are tier 1, as they all share the same set bonus, but the higher you go, the better the stats. Tionese comes from hard mode flashpoint bosses that aren't the last boss, and can be purchased with commendations and crystals that drop off bosses and dailies. Columi comes from the last boss of a hard mode flashpoint, and normal operations, and can be purchased with commendations that drop off bosses and dailies. Rakata comes from hard mode and nightmare mode operations.
Again I feel that these are all just the same tier, as they all share the same set bonuses, but higher has better stats. Centurion can be purchased with commendations that are found in champion pvp bags. Champion tokens are obtained randomly from champion pvp bags, and can be purchased with champion commendations that drop from battlemaster pvp bags. Battlemaster gear is randomly obtained from tokens that drop from battlemaster bags, which come from dailies, and require valor rank 60 to open.
When you compare the pvp and pve versions of the same rank of gear, they are very similar. The pvp gear has expertise, and the pve gear has a bit more of the primary stat and endurance. The secondary stats always seem to be the same.
There are dailies on Ilum and Belsavis for daily commendations that can be used on epic level hilts, barrels, and armor mods, as well as very good implants and ear pieces.
There is also a pvp daily and weekly on Ilum for pvp bags.
For people who just hit level 50 I recommend finishing your class story missions, which will unlock the Ilum chain. Once that is unlocked I would do the dailies on Ilum and Belsavis to upgrade your hilts, barrels and armoring, and then begin to try out hard modes. PvPing is can also be a great way to gear up, if the tokens happen to drop from the bags for you.
Hope this helps.