In perfect world, should i be an assassin or a seeker?

i like fighting up close and i like physical fighting more than magic fighting. my friend told me to be an assassin but i dont think i wanna live underwater cuz it doesnt look that fun (i think) and i was thinking of being a seeker cuz of their cool skills and physical fighting but i also dont know if it would be fun. please help. which would be the best choice?