Although not with the brands you've been looking at, I've had both stand-mount & subwoofer packages (since given them to the inlaws) and floorstander only packages. Some general points that may or may not be useful:
Putting a subwoofer with stand-mounters will let you big right down to the bottom octaves and there is an argument that this option is preferable to (some) floorstanders as cabinet rigidity and colouration can become more of an issue with larger enclosures.
That said however, adding a subwoofer does mean allocating floor space another box, can be expensive, and does require quite a bit of tinkering to ensure seamlesss integration with your speakers. You can of course dial up as much-or as little-bass as you please though.
Floorstanders will generally give more bass than standmounters of the same range and I find this setup preferential; the voicing and integration of drivers has been done properly by someone far more knowledgable than myself with proper measuring equipment. A floorstander's footprint is roughly about the same as a stand-mount too. Better still, if you are upgrading from existing stand-mounts there is always the option to use them as an auxiliary pair.
Anyway, enjoy the hunt *biggrin*
LDTM