There are a few things, but not much that I have had a better experience in Spark with as compared to using something like apache pig with UDFs. Now this part might be a matter of how things are set up where I work, but I find that working with Tez for process management and debugging to be far easier than working with the process management built into Spark.

EDIT: when you read process management above, perhaps it's better to think task management.