Then every player with an evil would quit' date=' because a storm giant paladin is just ridiculous.[/quote']
And do things that would take away certain overpowering factors...
Guys, lookie here. Remember when I said this? Yeah. If Stormies were too strong, make an rp reason to make them less viable, so that they could still be attempted. Also, Mudder this would reduce the apping process (which I don't know whether or not imms would want this to happen) since all the answers would be ready. 
Examples, I would expect most overpowered combos to simply lose skills that cause the overpowering. Giant monks don't get kickboxing at all, for example... just off the top of my head, since they're "more clumsy and less dexterous than many races." Maybe your stormie pally could have toned mana at pinn, or something. Much lower than stormie int worth of mana.
I highly doubt this will come to fruition, but that doesn't mean I won't pitch it as a very good idea.
Storm pally is not strong like you would think. Neither is Fire DK. Regardless of what you might think stat wise, pallies succeed through attrition. Being able to heal to full multiple times while keeping people chasing. Stormies have low mana, low dex so AC is blown to bits. Elf and Human are much stronger.
Fire DK is just a turd. No mana means you have alot of trouble keeping spells up, and you do not get much mana back from sleeping tics. I promise you neither of these is at all "op"
It is very easy to train a lot of mana. In fact, I rather train mana than hp any day. 
STORM GIANT AND FIRE GIANT. Unless you are taking 40+ hours on training alone, your not gonna make a huge difference with 100 trains at level 50. - 1 for each skill you get, your around 45 extra pracs. so 80 mana? Have fun champ
It is not just their weapon selections, charging, and size that is in question. It is the combination of all things. A paladin's natural ability with attrition would match well with the sheer strength of a storm giant. You are giving them the ability to cast sanctuary, heal themselves, remove males, and fight like a warrior. In the end, a fully decked storm pally should only be able to be taken down if one, the player is simply not entering any commands, or two, being ganged. In the hands of an elite player, I could hear the cries on the forum of unbalance.