Don't play hoplite. It's too easy.
18/18, 21/15 or 15/21 at level 30
Straight spear and shield? 1h mixed in?
Straight spear and shield here are a few builds:
18 STR
18 AGI
65 HP
6 IF
6 PS
6 Shield
6 Athletics
5 WM
146 Polearm
Balance uber alles. Durability, decent movement, protection, hitting power.
27 STR
15 AGI
62 HP
9 PS
3 Shield
5 Athletics
111 Polearm
With light armor you'll move decently fast, and 9 PS pierce will put some serious hurt on people. 3 shield skill is a little weak but once it breaks you just turn into 4d or 2d support/pole. Still has great HP because of Strength's OP passive.
15 STR
24 AGI
60 HP
5 IF
5 PS
5 Shield
8 Athletics
Fairly durable for a lower end STR char and will still hit hard enough (if you're NA side, Bigsandwich excels with a 15/27 build using a War Spear- pierce still destroys) while supporting. The extra athletics really helps you to move around teammates.
My personal fav hoplite/1h build is 18/24 at higher levels, but what Espwn suggested and the builds above will do well for 30.