A moderate climate is the 
best, whether if it would be 
moderately cold or 
moderately hot. As a 
person who likes the cold 
as my favourite season.
But if we're talking about 
extreme situations, I might 
go with cold because let's 
compare two cities hot 
Arizona to cold Montana.
In Montana, there are 
around 40 days of below 
freezing weather with some 
snowing. There are also 
four distinct seasons 
including warm summers. 
So it accommodates both 
cold and warm weather.
In Arizona, there are 
around 110 days of triple 
digit heat. No fall, and it 
can still be hot in Octobers.
So, I would prefer a cold 
climate region over a hot 
climate region.