GPL vs. Apache really does matter a great deal.
I work for a very large (15 billion) dollar news and information corp. Apache licensed projects are aok to use for any of our products. GPL is strictly verboten by our legal division.
Like it or not, GPL precludes the retention of corporate IP, even if the libraries are used unmodified.
I would encourage any open source projects that want to be considered in mainstream (for profit) IT shops to use an Apache or an Apache style license.