Here's my jeep resume
1981 CJ 7
1979 CJ 7
1997 TJ
1995 YJ
1988 Suzuki Samurai (not a jeep, but, had YJ springs under it)
2005 LJ
Out of all of these the 1995 YJ was my favorite, simple, solid, power steering, fuel injection. If all your after is a simple foundation a YJ is a sweet way to go...