All,

when I was in Spain (ES) I had a vodafone sim in my travel phone (dual sim, nearly all bands)

I might be heading back for a bit and need a suggestion from folks.

Do I go with Vodafone or use T-Mobile?

I was very sad when when my 640 LTE dual-sim Lumia died recently. (Windows phone is dead anyhow...)

I used SKYPE 99% of the time for calling and only used data. For those ultra-few times I used local dialing, I never consumed more than 30min.

Vodafone generally has a good coverage and reasonable data plans throughout Europe. But in Sweden and Norway would probably be better off with a Telenor -subscription as they have recently announced a Nordic flat rate plan.