i have bloomsbury pm and odeon pm and love them both. wonderful for travel or day tripping. i bought my odeon used and it had quite a bit of patina, so that saved $ and also made me not worry about the vachetta. highly recommend both.
I purchased a vintage saumur 30 & then sold it...I found the double sided flaps with buckle closure were just too difficult to get in & out of. The strap also got quite uncomfortable after a full day of wear. I wouldn't recommend it!
For travel I would say hands down, speedy b in the larger sizes, or a keepall. The speedy b 35 or 40 is prefect if you want it to be both a handbag and a travel bag.
Bloomsbury GM - big enough to carry an iPad and the necessities but slim against the Jody - which is especially helpful in busy cities or ancient sites which tend to be very small