As someone who plays almost exclusively Charr and Asura, I always found Spacial Surge, the Greatsword 1 Skill, to be visually underwhelming. It wasn't until recently I learned that the reason is because Charr and Asura both use a totally different animation that Norn, Sylvari, and Humans do, who, rather than just sticking the sword out in the air, spin it radially between their hands. Not only does the N/S/H version look way more interesting than the C/A version, but it makes Exordium, the first legendary I crafted, look way cooler than it does stationary.
I know this isn't a major issue, but I very much would like to see the Charr and Asura animations for Spacial Surge changed to be more similar to the N/S/H animations to give them the proper visual flair.