Is the Macbook Air a Pro laptop ?

Hi guys, I am facing a dilemma between a fat HP EliteBook (i5 Quadro) and a MBA 13" (2013).

I would love to be able to work on Windows at the office and still get Mac elsewhere instead of Windows all the time, BUT.

Is a MBA enough powerfull to run Bootcamp or VMWare for Excel, finance or accounting apps – no huge databases ?

Will it keep up and last enough years, compared to this HP or MacBook Pro ? Or would you simply recommend me to get a MBP ?

Merci !