It depends on what type of gear you have, but usually there is the most idealistic.
Armors -
Tao/GR (vs Champions, Paladins, Creators)
Tao/Tao (vs Ninjas, SinX's)
OL/OL (vs SinX, LK, or Paladins <-- I've beaten a few off of reflect)
Tao/RSX (vs classes when your other armors are broken)
GR/RSX (vs classes when your other armors are broken)
Weapons -
Thanatos, Phreeoni, TG, TG (Main Hand)
Incantation, Phreeoni, TG, TG (Main Hand) Switch off between the two
TG, TG, Skeleton, Skeleton - - - Off Hand for massive damage
WS, Dragoon Warlord, Metaling, LOD - - - Off Hand for strip/break
Edge - Coma
Cloaks -
Skoll/Raydrics - (vs Gangs of people)
Skoll/Skoll (vs LK, SinX, GS, Ninja, Sniper, SOMETIMES Paladins)
Ray/Ray (vs Paladin, Champ, and Creator)
Boots -
FBH/FBH - (Pure damage)
Shields -
GTB - (Magic/Coma)
Usakoring - (Damage reductions/range reduction too)
Helmets -
Valkyrie Hemet - - - 2 Gemini's
Moon/Sun/Flower/Emp Aura - Maya P
Wing - Increase Speed <-- only if you can't afford Rucksacks
Rucksack - Kiel/Pharoah whatever you prefer honestly.
Accessories -
Str/Str - Pure Damage vs most classes like SinX, Paladin, LK's
Str/Vit - Survival/Damaging - Champions I usually use 2 str though
Vit/Vit - If you just want to do pure survival
Stat wise it all depends on preference of whether or not you just want to do huge fast hit & runs. Or you want to survive others.
But my build was like
26x Str
19x Vit
Dex till 150 <-- Auto Cast
Agi till 195 aspd <-- Including Decrease Agi
O_o I had like 270k hp with 1 Tao which is really worth having when you're being ganged, etc.
There are different methods as well, as when you fight against others.
Of course this is my opinion, and my opinion alone.