From what I've seen, everything you see in SmartView Tracker should be present in the LEM data, but I think in a few cases SmartView Tracker might pull together different sources in a different view for some of its Users views. LEM will be entirely based on what's coming into the logs, so you will see the user data in the log data that comes through, but if there's anything stateful that SmartView Tracker is getting by interrogating connections on the firewall and not using the log data, LEM won't have it. It might also take a little bit of effort to backtrack out the same views from LEM. (One of the advantages SmartView has is that it's focused on the CP data/systems, but LEM is a lot more generic.)
For best results, hook up a CP firewall to LEM and take a look.