Ramses and Cyber certainly are hell on wheels for getting kills as shielders.
They usually have at least two or three 'support' guys with them what gives them the opportunity to fight the opponents 1 vs 1.
A strength shielder with 8 power strike, relatively long weapon and big shield is in 1 vs 1 good against everyone except high agi kick slashers.
But once you get seperated from your pack, or those guys get killed, a str build shows its weaknesses. Many 2handers/ polearm guys have 8 and more ath, you are too slow to chase rangers efficiently, and melee in a 1 vs x is difficult.
When you want to go on your own, flank, kill rangers and stuff, I think a relatively fast build is the better choice. You better have two weapons with you though.
Elite Scimitar against light armored opponents, and steel pick or flanged mace against tincans.
You probably wont get so many kills, but keeping a whole group of enemies busy for a while, killing some and injuring some more might be more fun than sticking with the mob all the time.