Bingley - Practical answer.
Although it's tempting to buy one of these tools with ten billion attachments ... I bet you will rarely use most of them. So the real question is ... which attachments actually do get used on a multi-tool?
I vote for the following ...
1. Pliers
2. Screwdrivers
3. Phillips screwdrivers
4. Knife
5. Saw (maybe)
6. Bottle opener
Therefore, my vote would be to choose a LARGE Victorinox that has excellent attachments that do those things.
I'm interested In other peoples' responses about the attachments.