This discussion may contain spoilers!
And the most loved Sam and Max character is....Sam, well and Max pretty much equal. But out of the others:
1st - Bosco (27 votes)
2nd - Sal (26 votes)
3rd - Flint Paper (17 votes)
So that's it - hopefully Bosco will make a return in Season Four (when and if they make it) and hopefully Sal will have survived that fall into the abyss in time for the season finale...