Umm. well 5 lined up for this season for both formats although opted out of the Indoor Winter League as it runs at my school:
T20 - Newbery Uzi and/or Warsop Platinum Peerless
40 Over - Salix Rogue, Woodstock Platinum Curve XL and your Bradbury M500
To be honest, I used the Uzi in both formats last year although it has a shorter blade.
Reflecting on my range it's a bit of a 'classic' line up and always seem to be marvelling at the newer brand bats e.g. H4L, Black Cat etc as well as other well-loved brands e.g. Laver or M&H.
I'd love to have a bat from all of them if I could like one of the members here (100 plus bats or so - pete hosk, I think,) but I'm not that well-off or quite mad about batting yet although, I love it!