I have a client whose corporate font is Futura. Futura annoys me. Just look at the letter "j" in Futura Book. It looks like a confused "i" or an upside down exclamation point.
Paul Renner designed Futura in 1928. Sorry, Paul, you were a great German (apposed Nazism from the get-go and a prominent member of the Deutscher Werkbund), but Futura belongs in 1928, not 2007.
You are right, the lower case "j" in futura does suck. How about some alternatives? Avenir, Avant Garde, Kabel, Gill Sans, Berthold Akzidenz Grotesk, and Century Gothic. You can see what they look like in my blog post at: Futura Alternatives.
That's not a "j" that's a pool cue about to hit the 8-ball. The designer of that font was clearly behind the 8-ball when he came up with that one! Wa wa waaaaaa