I always make mayonnaise with olive oil, and I love it that way.
However, I have a problem. To my girlfriend's taste, my mayo is a little heavy, or strong. And she is right. Reared on Hellman's, she is partial to that light, sweet taste. EVO does impart that strong note of olives.
Growing up in Ireland, I myself was reared on the worst kind of stuff imaginable. It was called 'Salad Dressing', and it was a mayo lookalike that tasted like a cross between rancid cream and gnat's doodoo. So I consider any mayonnaise, even made from bio-diesel, as a step up. And as much as I love Hellmans, I like my homemade stuff even better, particularly in sandwiches with fresh tuna.
What oil(s) do you guys like to use?
PS does anyone else love the way Paula Dean pronounces oil as 'aaawl'?