Hi ZiggyCol - Congrats on your impending retirement - lots of time now for biking pleasure. I'm very envious as I've got another 10 years until I can get rid of this thing called work.
I had a Tiger 800 Xrx for 2 years prior to my Mutley and although I liked the Tiger, it didn't really pull on the heart strings. It lacked a bit of soul, and the stock sound of the triple is somewhat lacking unless you are giving it absolute full beans (which obviously you can't do all the time). I haven't tried the new Tiger 800, why would I, I have a fabulous Mutley - but having seen the new Tiger 800 in the flesh at the London Excel motorbike show, it didn't really grab me on the looks department.
I guess the only way forward for you is to test ride them both back-to-back... however I already know which one you will choose, and it will be Italian!
The hardest choice is which colour to go for.... red or white. Both look great, but I prefer white (with stickers of course!)
Keep us all posted on how you get on, and good luck on your mission.