Hi Blondie
It's difficult to say which would be be suite as little difference really in them, and all will need to be detached for swimming..
The main difference between the 3..
The Veo, is CGM compatible, You can get a CGM that connects and communicates with the pump and it's various wizards, could be handy if you can afford to self fund the CGM it's not cheap, and there's no NICE guidelines so funding in extremely difficult.
The Animas, Doesn't have CGM compatibility and I don't think it has a remote to it.
The Accu-chek Combo (The pump I use) doesn't have CGM compatibility, but does come with a handset that is the blood glucose meter and remote for the pump, This is very much like the 'Expert' meter you've got. But also includes bluetooth for communication with the pump, all the software on the pump is on the handset, also the bolus wizard include the different bolus deliveries of the pump. And of cause the reports includes pump information.
Apart from whether you prefer to have remote, or able to fund CGM there's not much difference, so when looking at choices
Have a look at navigation of the Menu's as they are all different... So it may be one is easier for you than another.
Screen Size and read out, could be the clincher (I think the Animas has a colour screen)
But check out
www.input.me.uk as they have comparisons of the NHS available pumps, plus take a look a the manufacturers website, they all should have a small demo program of their pumps and Broucher's that you can download or request... And you can download the manuals as well, this will help give you an idea how to navigate the menu's.