I just was at Lancaster Brewing a few weeks ago. Yes, Hop Hog is their best beer. I have had it before and was not thrilled. turns our Lionshead brews and distributes the beer for them and they cant seem to get it right! At the restaurant/brewery they brew all the beer on premises. The don't distribute from there. (Growlers are your best bet) I would say the Hop Hog on cask was up there is top 20 IPA i had. Not the best, but will be nice. Not to mention, We had some hot hippy bartender. (Always helps)
Also, don't Forget Victory Brewery, about 35 - 45 minutes away. This place is a must! Food is awesome and the rotating draft list is up there with the best. Plus they have good brewery tours, check out the website.
Let me know how the trip goes! I am from the general area, if you find anything else let me know!