Provisional it boils down to what style stout you like ..... Nitro/milk Stout, which guiness is vs. a more standard stout and then an imperial Stout (a heavy duty standard stout but typically with a high abv....Anytime you see imperial check the abv if you plan on having several as it makes a difference....Lots of imperials surpassing 10% and the some). It's got all the things I look for in a stout, roasty, coffee, and chocolate....It's def not for the faint of heart, thick and tasty, one to enjoy.
I used to be a guiness lover (still do like it) but once I started sampling other stouts and imperials, realized how complex the other styles can be.
The family and I are down in Wisconsin dells for the weekend and the one redeemable quality about this place is the showboat, which has a kick ass tap beer menu....The hilites today- founders Lizard of Oz a bourbon barrel aged stout (for the sake of not going on forever, I'll leave the bourbon barrel aged stouts out of this discussion), founders breakfast Stout.....My bro had the nitro breakfast Stout....They had both styles on tap.,.Both good, but the non nitro version is $, probably the most intense coffee taste in a stout, that I've tried while still being enjoyable to drink.
Nitro/milk - very creamy and mild, less roasty vs. their standard and imperial bros.