here's my 2 cents. They are very different as are peoples tastes so . I know both well but have not been to Cala en Bosch in main season- so while there is a lot there there are also massive more amounts of people. Often what makes/breaks a place is the other guests! Cala en Porter is also more residential
Cala en Porter
pluses
Beach and views is an anotner class, to Cala en Bosch.( step to beach worth the effort )
Closeness to Mahon, Es Castell any beautiful country side ( bus services )
Airport transfer times
Appeal more to a relaxed holidaymaker, mostly catering to self catering Villas and Apartments
Better restaurants ( partcularly the menorcn ones ) plus´nearby to execellent restaurants in local towns within 20mins drive
Coves Xoroi - magical place
minuses
less to do for children, but less people so not sure ( in 2008 ) they built out the childrens facilities so its better than in previous reports
Not geared to Hotels
-- some 'tacky' cater to the brits bars too!
needs some more investment ( though has improved over 2008 onwards )
Cala en Bosch
pluses
Appeals more to a holidaymaker looking for lots for children to do
Want buzzy of bars close on foot
Lots to do but has more packaged holiday hotel beds, so will attract bigger crowds
Marina is attractive in the evenings but again some 'tacky' bars too!
Minuses
Airport transfer times
beach can be overcrowded in peak
As has big impact on nature -was built in the least attractive part of Menorca IMHO ( but can understand why - folks who dont want to travel more than 500 yard from pool etc )
NO sense of menorca there at all if you stay in the resort