Hardest/Easiest Classes?

I was wondering what the community thought about this. After doing relatively well as a Man-At-Arms, an upset knight on the other team started calling me a noob for picking that class and told me that any retard could play MAA. He used the term "Spam at Arms". Is that the mainstream opinion?

In my opinion, from easiest to hardest:

-Vanguard -Knight -Archer -Man at Arms