Asheville resident here.
I love Green Man. It may not be the best Asheville brewery, but they are certainly one of my favorites. For the longest time my avatar here was the Green Man logo, rotated between the different seasonal variations.
The three beers you mentioned are the standard year round "flagship" beers. All of them are solid, IMO.
The IPA is a traditional English style IPA, so if you prefer big in your face west coast sticky, dank IPAs it may not be your cup of tea...errr pint of beer. It is by no means a malt bomb, but very balanced.
The ESB is what it is. Nothing special. This particular style isn't one of my favorites, but from time to time I'll put one in my mix 'n match 6er at the grocery store. It's definitely better than most other ESBs that I have had.
The Porter may be my favorite of the flagships. Like the bottle says, its robust in flavor (or flavour as some of us on this thread may say
).
My favorite Green Man beers are the seasonals. I'm not sure if they will distribute any of those to Orlando, but I'm thrilled to learn that they have made it all the way to Central Florida.
Speaking of Green Man, I received a Dweller from Ricks68 last night during a brief beer exchange. Excited to try this year's version!