I tuned up the Buddipole at 17-meter - also using the balun 1:2-setting.
This took the SWR down to 1.1.
Listening to FT8 at 18.100 there was not much difference between the two antennas.
The Alexloop was quiter on the band.
So, next is to setup the antennas in the garden when the 4 ft. of snow is melted away..
So, for working QRP at hotels - Alexloop is perfect.
Having a balcony some sort of - I would choose the Buddipole.
The Buddipole can take 100Watts+ but max 20W SSB through the Alexloop.