i'm small like you (barely 5') and have the PTT. i think it's most practical. i like the zippered main compartment and the two open side pockets. i put my phone and other commonly used things in the side pockets, but my wallet and valuables are protected.
I vote GST. I am 5'2" and LOVE it!! I would not trade it for anything else - EVER! I like a bigger bag esp. with 2 small kids, PST was too small and I did not like the single compartment with only a snap closure. GST has 3 seperate compartments that keep you totally organized and have a zip for valuables/wallet.
Not sure about the PTT, that one might be better if you are looking for a smaller bag.
PST is really small. It doesn't hold much at all. Plus I find it looks off proportionally to me, and I'm 5'0. It's vertical, and looks too small for a tote and too big for a small bag. Does that make sense?
I had a PTT and sold it because I found it too deep and made my elbow stick out at a uncomfortable angle. I was so sad because it was actually the '07 red with bijou chain at a great price, but I couldn't keep it because it wasn't very comfortable.
I love the GST and have quite a few of them. It's very functional, easy to organize if you carry a lot. It's great for work and is also a nice mommy bag.
PTT...the pst is cute but does not hold much and does not zip (snaps shut) and the GST is beautiful but is very heavy and slips off the shoulder. I have had all of them and I love the PTT the most. JMO.
I absolutely love my GST and would not trade it for the world. I love the room and the functionality of the bag. I often put my black WOC inside of it and it carries me from day to evening events. I use this bag practically everyday.
Oops, I voted PST, but actually meant PTT. <3 the zipper on top.
Personally I think the GST looks a bit big expecially on a petite person. Sometimes too big of a bag on someone reminds me of diaper bags JMHO.
How much stuff do you need to carry around ?