Parkbrau's "Pils" had a crisp, sharp "tangy" bitterness, while their "Export", had more of a dark grassy "herbal" bitterness. Both were good, the export was more popular with me, other americans, and the local germans as well.
There was (2) other local beers worth noting; Karlsberg(not to be confused with the Danish "Carlsberg"), and BBK.
Karlsbergs big offering was "UrPils", kind of similar to, but better than Parkbrau's "Pils" beer.
BBK always seemed to be the beer that was always available when somthing else wasn' t within reach, BBK was not as well liked, tasted like a milder version of "Export", and the local GI slang term I recall for it was "Bad Beer from Kaiserslautern", in hindsight I don' t remember BBK being "That" bad however, and for the record BBK actually means "Bayerische Brauerei Kaiserslautern".
Although not local, "Heinekens" always seemed to be around as well, which is not a bad thing at all!
PLEASE NOTE: Do NOT assume that Parkbrau, Karlsberg or BBK tasted anything like other german EXports like "Saint Pauli Girl", "Warsteiner" or "Becks", which all have very thin body and only a tiny "Saaz" hop aroma and not much else. In Zweibrucken, and I suspect anywhere else in "Deutchland"(Germany), we NEVER HEARD OF "Becks", "Warsteiner" or "Saint Pauli Girl", so my association of what a german beer is can be very different from others. If all german beer tasted like that I would NOT have respect for Germany as a beer producing region!
In later years I would discover American brewed versions in the British "India Pale Ale" style beer. IPA's are Pale Ale's with a bold hop character(bitterness). Popular beer legend denotes that this style of beer was created out of necessity, the belief was that a beer higher in alcohol and hops was required as a preservative to prevent spoilage, when shipped on the long journey from England to India, via Clipper Ship. However many historians dispute this necessity, due to evidence that other beer styles such as Pale Ales and Stouts made the same voyages to India without spoiling. I prefer to consider the higher hop and alcohol content as "insurance", as the IPA cargo would be the "least likely" to spoil.
"Bridgeport" India Pale Ale, from Portland Oregon, USA is my favorite IPA.
"Mirror Pond" from Deschutes Brewery Bend Oregon USA, is  of my  absolute favorite "Pale Ale" beers, although this one is classified as an APA(American Pale Ale), it has a hop level that comes close to many IPA's, I find it to be very pleasing, with just the right hop bitterness, a nicely balanced beer to my palate.
"Sierra Nevada Pale Ale" by Sierra Nevada Brewing Company [Chico California] is the "other" favorite "Pale Ale". Like "Mirror Pond", Sierra Nevada pushes the hop balance a bit for the style, but where Mirror Pond has a dark herbal bitterness, Sierra Nevada's bitterness is more crisp with a "citrus" bite.
Another beer style to my liking are the ESB [Extra Special Bitter] beers, also a British style, an ESB is "Less Bitter" than a "Pale Ale", and the malt is roasted longer, resulting in a darker "Copper Red" tone to the beer. An ESB tends to be very smooth and bold. Redhook "ESB" from Seattle Washington, USA is my favorite ESB.
These dark "stout" beers get most of their "bitterness" from the darker roasted malt, the use of hops is lighter, its a different experience altogether but while I enjoy darker beers, these Ales require "Some" aging in the brewing process, and with my resources being what they are(limited storage), I have chosen styles that can be consumed right away.
My favorite "dark roasted" beer, [and my favorite beer of ALL TIME], is "Old Rasputin Imperial Stout", from North Coast Brewery, Fort Bragg California.
Besides, the picture of "Old Rasputin" on the label has an uncanny resemblence to my old drummer Kelly Buckner! [The fellow on the right]
I could never coax him into playing originals, but hey, that's a story for another time!
I settled for a malt recipe displaying a "Copper" or "Dark Amber" hue, somewhere between an "English Brown Ale" and an "ESB", robust, nutty, slightly sweet,
with moderate hints of molasses.