Looks like Noel and Stephan already voted:
[X] SLF4J
[ ] Commons Logging
[ ] Log4J Straight
[ ] JDK 1.4 Logging Straight
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Note that SLF4J and CL are not implementations but adaptor libraries to
implementations. SLF4J uses NLog4J which is basically Log4J made to
conform to the SLF4J interfaces.
Noel Bergman +1 for Commons Logging
Stephan McConnell +1 for SLF4J
I vote +1 for using SLF4J with Log4J (NLog4J) adapters.
Thanks,
Alex Karasulu