SUPing said..
2 or 3 SUPs on a trip to the Maldives.....now that's what I call a dilemma.....1st world problems hey cSe - haha
At the risk of stating the obvious, your 7'10 Minion will definitely act more like a short board vs your other 2 boards & you're dead right taking the board you're most comfy on but I guess it all depends on what kind of conditions you're expecting because if it's quick close-outs, I'd choose the Speeed every day of the week!
Definitely a first-world problem

I visited the Maldives 3 years ago, but I can't really remember what the waves were like. We were on a boat (and are again this time) so we visited quite a few breaks in the central/south atolls, and my recollection was that we had a mix of waves and conditions. Some were a bit fat and small, some were steeper and you had to get on your bike to make the section. But it will depend on the swell and wind and where we are located... It is often windy at this time of year, but I don't remember it getting over 10-15 knots.
Seems to me that the Speeed will be great when I need the speed (I am pretty clever to figure that out

), but I love the maneuverability of the X32. And
right now, I am more confident in a late/steep drop on my X32. The Minion is the lovechild of both boards. I would love to have it to push myself and no doubt do more on the wave than I could on the other two.
Ref:
X32 is 8'8" x 32"
Speed 8'10 x 29"
Minion 7'10" x 29"
Me: 6'3" 90 kg