i think its best to choose a hybrid type fighter, which is a 2:1 end, str build i think. so u increase end 2 times, then on the third lvl up increase str. that way u have good str for solo and pvp (player vs. player) and u have good end for tanking too. u can also do pure end a tank, or pure str, a damage dealer. or u can do an end base with like 5 times str maybe more or other stats, and the reverse with str as the base. for a best wep to chppse at lvl 20, it depends on your build. if u were a tank, pure end or end based, u would probably choose a 1 hand sword and shield. if u were pure str or str based, choose the axe or 2 hand sword. if hybrid choose any
. but u should make sure to buy good str and end gear and weps. maybe a +9 shield, sword or armor too
i hope i helped