Getting to the hotel from the Flughafen

Canadian currency is stronger today, which leads me to predict that it would be best to buy currency on Wednesday or Thursday.

But I digress.

So far, of all the transportation to and from airports I've looked into, Vienna is the most confusing.  

1. We could go the easy route and take a very expensive taxi (60E,... I don't think so).  

2. Or we could take the City Airport Transit (CAT) system and connect with the U-Bahn (Metro) U3 to U1 and then connect with Tram 21 (9E plus whatever the U-bahn fare is,.. likely 3E).  

3. Or we could take the S-Bahn (normal train) which might take us all the way to Wien Nord (Praterstern) Station, where we could then catch Tram 21 to the hotel.  However, the S-7 train might only take us as far as Wein Mitte (Landstrasse) station, so we'd then have to transfer to a different S-Bahn or to U3 and then U1, before finally getting on Tram 21.  This option might cost only 3E for the one-way ticket.  

Upon looking more more closely at the S-7 schedule, I thinkOption 3 is our best bet.  Cheaper.  And only 1 transfer.  I think.