TJW is definatly my favorite server. Good fun there, it has BALANCED FF on, low lag, and to top it off the build limits are increased (a paradise for us base building hippies)! Plus it even has fancy commands like private messaging people.
AKKA is also a good one, and generally has good pings. Its a pretty "basic" server (normal build, no FF), but it has alot of players and can get really fun with alot of players. I dont like the fact that it has 8 or so extra slots, i join a game to play not spectate. The spectator slots give me an impression that I am waiting in a "line" of sorts to play rather than actually playing. Many times i end up playing a different server though because AKKA is always full too. However, another spicy addition to this server is that they also add some of the new maps that are fairly complete or balanced fully, such as MEEP (which is my new favorite map, i love some of the concepts in it).
I cant comment on teh DB servers, considering I can never join them (Low Ping?). However, many peopole like to play them and they dont have oversized player limits, so i can probibly assume they are good.
I can comment however on the Test server. I really like this server, because when I am ever in the mood for som,thing new and cool, i like to play on the new test maps. Ping is decently good most of the time, and there are enough players to have fun. The only thing i really dont like is the extra long decon timer. I'm one of those builder types who belives that a short decon timer is nessicary, but your server has a 5-10 second decon timer, which sometimes hinders base movements

. Luckily its a "small" server so time is not really needed to move a base quickly, as there arent other players jumping around everywhere.
I also like SATGNU... good player limit and FF is always good. The pings can get bad at times, but at other times it is also decently good. I also like how some of the new beta maps are in teh rotation. Although, the server has Uncreation, which i despise because the map is basically one giant room (performance killer?).
I cant really comment on Beer Garden as well, but its always a server i end up playing on if some of my top picks are full. Pretty good server.
Anyways, the only servers i really like to prefer to play on are:
1. TJW
2. DB Test
3. AKKA (if it has less than 24 players)
The others i play on if the above are down/full... i'm honestly not picky on servers though. The only ones i dont play are the regular DB ones due to that Low Pings Only error i always get with them.
And I dont belive in the whole "New players tend to stick in the *insert* server". If any new player is like me when i first started, i just pick a server that isnt full and go.