HFS+
Only reason not to journal is if you transfer huge amounts of data ... ie if its drives being used in a file server or somthing...
No, that's exactly where you want to be using a journaled file system. If your file server goes down, you don't want to lose any recently transferred data. Yes, you do take ~10% hit on write performance (read is unaffected), but this is well worth it if you care about the integrity of your data.