Shit, amsterdam is heaven! And i advise you to smoke whatever the hell you'd like man

Or are you that kind of person that could ponder for hours what to smoke first and then when you initially get there you'll smoke something else? A bit like me XD
Then it doesn't really matter what we advise right, though keep an eye out for some (or a shitload!) chiesel and/or kandy kush from the grey area and some cheese and/or chocolope from the the dampkring or that other shop, uuh kleine kamer? Tweede kamer, that's it XD
Usually you can't go wrong with those.
Ofcourse it's smart to sample a joint first, i don't know if english talking people could ask for 0,5gr so you could try the weed first before buying a bag, sometimes if you're in bad luck the weed won't taste as you expected, which doesn't always indicates that it's coming from a bad strain, sometimes it just won't live up to your expectations and you might feel dissapointed.
Mankind created god in their own image.
Preparement plus practice equals progression
My own words.