Like he said, however you have two choices.
First off, it would be wise to use armor since the vast majority of all the monsters up until the late 20s are physical even with the 20% bonus from garments you will need to pot. With that being said, you won't need to pot as much from the hp side.
Heuksal is a great choice, it has nice HP buffs.
Quote:
They only go up to level 20 in spear and sword, and do not have a lot of skills to max there. For lighting they will max out just about every skill, so there is no guess work there. For fire they will max out every skill also, except the firewall skill which is useless.
That is from biggies guide, and much like most of it he doesn't explain his logic. Which leaves alot of room for guess work.
Personally I have tested spear vs sword. Spear will up your magical attack value but also at the expensive of life. I would suggest you use it while nuking etc. However, before you get your nukes you will be vulnerable and a sword + shield works very well - possibly even better then spear in PvP (if you are capably of killing them in 2 shots with or without a shield then might aswell wear the shield). Even after you get your nukes in certain situations.
Bare in mind though, my int char didn't go far before I decided to scrap him for a glaive. I'm not an expert or even very experienced with the build. I would suggest getting an opinion from someone who knows more about the subject, I guess I just felt like typing =D