Besides the point of how good certain skills are, I think most spells dont look cool enough when u cast em. Take for example earthquake, the ground doesnt shudder.... just knocks ppl down. Or maelstorm u see an ice block fall and thats pretty much it. and ur character doesnt say a thing, most spells require some words to cast the spell. Like word of healing... What is that word anyway? why doesnt he say anything. Looking back at baldurs gate (old game) spells were cast with cool effects and many casting phrases. Not sure why this is not so in guild wars, besides this I love this game dont get me wrong :).
The new skill churning earth however does giva a cool effect, u can see the stones fly around, now thats what I want to see.