There are categories for creators and comics in the self-published, mainstream publication and web fields, as well as for websites and comic shops, and a Hall of Fame section, so if you want to nominate Garth Ennis for his US-published stuff, Davy Francis for his work on classic UK kids' comic Oink!, Anna Fitzpatrick for her gorgeous digital painting on Between Worlds, or John Robbins for his hard hitting shorts and self-published anthologies - or, indeed, for me - please feel free.
And if you're struggling to think of who to vote for, why not browse the Irish Comics Wiki for ideas?