Hiya, Malteser. Welcome.
All the Triumph twins are quiet stock (emissions regulations) and there are plenty of options to remedy this. Triumph's own TORS (Triumph Off-Road Silencers) make it sound like a proper bike but some complain that they're (still) too quiet. I have the long version on my Speedie and I love 'em.
There are several ways to set up a cruiser for the shorter of leg, although, as it doesn't apply to me, I've not paid any attention to it. If you head on over to bonnevilleamerica.com (a site dedicated to the cruisers) you'll find all the information you need...and more.
As for which model is best (as per the title), no-one can answer that for you. The engines are pretty much the same so just go with whichever speaks to you the most.
*cough*Speediesthebest*cough*