searched the threads, but can't seem to find any opinions on this...

if i have the correct information, the train from Vienna to Budapest takes about 2.5 hours and the boat about 3 hours? i only need this one-way, since we are flying out of Budapest to Warsaw a few days after. so, which one should we take? any suggestions?

(also, if my travel companion gets sea-sick at times, should i be worried about the ferry on the Danube? i would assume it's smooth sailing, but maybe someone can give me some insight on this.) thank you!!!