I must be one of the lucky few. I've never had an issue with perspiration or odor so consequently I have never used any deodorant or antiperspirant.... ever.... nada...
In wintertime, I use one of the crystal deodorants. In summer, however, I use Mitchum Unscented gel. I'm not a big fan of sporting the sweaty armpits look around the ladies.
I have to have an antipersperant, so I have used the Dove for Men
Old Spice Fresh, or Mitchum unscented if I'm wearing cologne
I think i’ll continue using [Thai Crystal alum deodorant] over the winter. Not sure what will happen when summer comes around but Mitchum sounds like the serious contender.
I find my alum continues to work well in summer, but we've had a mild one in Sydney so far.