I see that Three deal; I know a few people on it, and up until I seen this deal I was destined to get it.
I now think that the Meteor deal is better. If you are using under 200 mins + Texts a month and are using under 1gb of data, then €15 is better than €20. Simple maths. 15 is lower than 20.
If however you are using more that the above Calls Texts and Data, maybe the Three offer is better.
For me, the Meteor offer looks the business, and its only a 1 month contract so I'm going to give it a shot, for a month at least.