The "bridge issue" is way over rated, as far as I'm concerned. It's EXTREMELY easy to put the G, D, and A-strings through the body and let the B/E strings go through the bridge, then you don't have to worry about it.
Don't you mean to string B/E through body and string the others through the bridge?
Not that it really matters to me. I've just read where others, who were worried about this, would string at least the B through the body.
The L2500 is designed to be strung through the body. You can however do the
G&L 5-string bridge attachment mod which converts it to string through the bridge and is fully reversible if you ever decide you don't want it anymore.
As to what they are like, well that is a matter of personal opinion. I have a Stingray 5 and an L-2500 Tribute. The SR5 has seen very little use since I got the G&L.
YMMV of course.
I just did this mod to my L-2500. I posted a thread with some more info here:
http://www.talkbass.com/forum/f8/g-l-l-2500-bridge-mod-1068749/
I have had my L-2500 strung with all strings through the bridge (and without this mod) for at least 2 years. No issues whatsoever. I did the mod anyway because, one, I don't like through body stringing anyway, two, it MAY help sustain, but certainly can't hurt, and, three, it MAY help avoid a bridge lift issue in the future, particularly if I ever change to higher tension strings. I'm currently using TI Jazz Flats.
In case you're about to ask, I don't like stringing through body simply because I like to be able to move strings from one bass to another. And once a string has been strung to tension through the body, it will have a kink in it where it crossed the bridge saddle, that makes it no longer useable on a bass that doesn't support through-body stringing. So, I just always string through the bridge to ensure the strings can be transplanted if desired. And, I'm totally unconvinced that stringing through the body really makes any difference.
Finally, I have had my L-2500 for several years. After getting it, I got a 2000 Stingray 5H. That SR5 pretty much replaced the L-2500 as my main bass. Then I replaced the SR5 with an EBMM Sterling 5H. Same electronics, just a different body shape, lighter, and one more fret. The Sterling stepped right in as my #1 bass, period. That was 11 months ago and I have been GAS free ever since. I have been messing with my L-2500 lately because it's strung with flats and I recently started playing with a big band jazz ensemble and I wanted the traditional sound. I was using my SB-2 with tapewounds and it gave the perfect sound. But, we added a chart that is easier to play on a 5-string, so the L-2500 got called off the bench.
And there are 2 main reasons I prefer the Stingray or Sterling over my L-2500. One, I like the feel and the profile of the neck better. And, two, the L-2500 is 10.5 pounds, which is heaver than my Stingray was or my Sterling is.
My L-2500 neck has a satin finish, which feels nice, but the oil/wax finish on the EBMM necks just feels better to me. More like bare wood.
And the L-2500 neck profile feels just a bit thicker than the EBMM necks and I like the feel of the thinner neck a bit better.
Soundwise, they all sound great, with a STRONG ability to produce a seriously aggressive sound that I really like - while still offering plenty of control to tame them down for a more traditional passive sound. The L-2500 definitely has more tone options, but I find myself using it like it seems that a lot of other players do - in passive mode. And, actually, for me, I almost always have it set for neck pickup only, series mode, and passive. I.e. almost exactly the same as how I play my EBMM bass - except, of course, the EBMM is active only.