Sounds good, Markuzz!
I had the Pass INT-30A, and replaced it with the INT-60. Both are very fine: to my ears the 30 was a snootch more musical, and the the 60 a snootch more revealing.
What tipped me to the 60 is that, unlike some of the experiences reported here with the 25A (and many reports other low watt Pass gear), I had trouble driving speakers with the 30, even efficient ones.
I'll be curious to here the results of your comparison! Also keen to hear about comparisons of the 60 and 250.