Alon IVs versus Vandersteen 2CE signatures

Hi folks,
I would love some input on this decision - I am trying to decide between a used pair of alon IVs and a new pair of Vandy 2ce Signatures. I am unable to hear the Alon IVs as they are in another state, but have previously heard, and enjoyed, the 1st gen Alon IIs. My initial impression of the Vandys were that they were vary laid back and smooth (something I like) but had very little "impact", particularly in the bass. The bass was clear and extended, it just did not pack much punch.

My listening tastes are musically split between female vocals (Charlotte Church, Jewel, Jennifer Warnes, etc.)and pop/hip-hop (Nelly, Crystal Method, etc.). In my one listening tests with the Vandys, they were wonderful on the first, but dissapointing on the second. Not sure if the room was the culprit, or if a sub would help add a little oomph.

Any and all input, experiences, or advice would be appreciated.

-Phillip