Newbie

[RagMastaRappy]

Forces are pretty tricky to start with, just because you won't have a higher character to help out on the financial side of things. At a low level, fluids can be pretty costly because your TP:Tech Cost ratio is unfavorable. Generally you can't get too much casting out of a fluid because you have to cast so much to kill. If you have no idea what you are doing in PSO, I say start with a Hunter or Ranger. I started with a ORAN Hunter, and I never regretted that through all his 108 levels. As for ID...

ORAN: If you want to be bombarded with crappy 9* daggers. Also finds the best armor in the game, IMO. (huggles piped Aura Field)
WHITILL: Two words. Guld Milla. And crappy 9* slicers. Also has a lot of good Hunter drops
SKYLY: Best Hunter ID, IMO. Finds lots of good swords, i.e. Red Sword, Chainsawd, and.....Sealed J Sword (1/12XXX)
PINKAL: Crappy. Avoid. Please. Don't be like my Force, finding 9* wands all over the place... However, has a pipable Agito 1975.
PURPLENUM: Best Ranger ID, also has a pipable Psycho Wand. Finds lots of mechguns, can also find all of the Yasminkov weapons.
BLUEFULL: Another crappy ID. Lotsa partisans...lots of them.
VIRIDIA: The shot ID. Doesn't find too much of interest.
YELLOWBOZE: Great for finding enemy parts and other cool rares. Also has higher chance of EP. II hit %.
GREENILL: The rifle class. Good ranger ID.
REDRIA: Has the best chance of finding the sets of "RED" weapons. Also finds all the "GOD" units pretty easily. Balanced everywhere else.

Now comes the character classes from best to worse. This is all based off personal experience and other research.
HUNTERS
Offline:
HUnewearl
HUmar
HUcast
HUcaseal

Online:
HUcast
HUcaseal
HUnewearl
HUmar

RANGERS:
Offline:
RAmar
RAmarl
RAcast
RAcaseal

Online:
RAcast
RAmarl
RAmar
RAcaseal

FORCES:
Offline:
FOmar
FOnewearl
FOnewm
FOmarl

Online:
FOnewearl
FOnewm
FOmar
FOmarl

Hopefully this will help you with your decision, and have fun playing PSO!