Here's my opinion, having lived/cycled in three towns.
Yeovil - good if you like hills, bad if you want nice smooth roads. Drivers generally OK, but can get impatient with the hill climbing, lots of beautiful scenic routes out into the country and north Dorset.
Aldershot - lots terrible drivers, relatively flat, decent-ish quality roads, few traffic lights, many zebra crossings, traffic moves quite rapidly. Not that many great views, lots of good mountain biking, Basingstoke canal, MoD training areas of great for off-road. OKish country-side routes, although you're never really completely rural.
Horsham - lots of rubbish cycle-junk painted everywhere, loads of traffic lights, ONE zebra crossing in the whole town, traffic always grinding to a halt - stark contrast to Aldershot. Road surfaces terrible, get bumped to hell, relatively flattish. Annoying national speed limit dual carriage-way surrounds the west and north sides of the town, makes it annoying to get out that side. On the plus side a fair few other cyclists. But drivers relatively good around cyclists.
So no, I can't answer your question.