Jan 3, 2011 - 1:24 AM
I see. Well, the IR train takes the exact same route as the EC train. The only difference between both trains is that the IR makes a few extra stops and offers the opportunity to book a seat in the panoramic coach (those might be available in first class only). So, for the trip itself and the view from the train, you might as well take the EC.
It's subjective, but for what it's worth: I really enjoyed the boat trip on Lake Lucerne. I made that trip in Spring though. I don't know what it's like in February.
Another excursion along the way is to get off the train in Arth-Goldau and take the cog wheel train up the Rigi
for a great view. You can do that using an IR, EC or any other train that stops in Arth-Goldau.
In any case, enjoy the ride!