Typefaces

The VPL uses Bodoni (too formal and stately looking) and some type of san-serif typefaces. Their san-serif face which I don't know the name of it, resembles close to Gill Sans (dunno know if it's really Gill Sans). Either way, I've been using Trebuchet up until now as a typeface that showed modern friendliness. But, as one student put it, this default font for computers is too quiet for my survey. More oomph, please. Perhaps a rounded type? So I am looking at these choices for a more friendlier + fun appeal: