BComm I reckon especially if you want to get into the Job market faster.
As for earning more, if you are qualified ACCA (or ACA) the degree you got before that wont be all that relevant.
The big factor (as with most jobs) as you start working as an accountant will be the type of experience you get. For example, you could be working 5 years for Joe Bloggs & Sons in Castletownberehaven doing small company accounts earning OR you could be working for a Big 4/5 Accountancy firm in Dublin gaining accounting experience with Big Industry - who do you think would be earning the most ? Who'd be happier though ?!
In the meantime, enjoy college and dont dwell so much in the future.....
And learn how to spell Bachelor before you leave school !