Hiring both is the thing you can do!
I have been on a Lagoon 440
in harbour, so cannot comment on performance or monouvrability, you will be able to compare. She is very nice inside.
I can see both bows and sterns from my driving station, can turn the boat on a pin at 1/2 knot
or less as the prop stream hits the rudders and magnify trust.
I can zip/ unzip the sail bag in seconds.
There are differences and similarities, both will hold their value.
Hopefully you will be able to try both in a bit of sea, most boats are much the same in calm waters.
It would be nice to hear your impression after the charter