We're looking to get one for our office so there will be a mix of Schrader people and Presta people. It needs to work well for both.
I have Topeak Joe Blow with the Twin head that I like OK but it does not always seal the best. It originally came with a head that was supposed to magically work with both but it didn't really so I switched to the twin head. I also see that there are about 5 different Joe Blow models.
Someone else said that they've had very good luck with Specialized pumps.
So, what should I get?