Hello,
It's too much i think, you should take care with them. Comodo is buggy, Webroot is made by NSA, and crystal send all files to virustotal which is used by Google.
If you want a stronger offline protection then Avast Free + Crystal Security + Comodo Firewall works good though. If you not looking for Comodo FW's Auto sand boxing feature you can consider Private Firewall which is a mechanical firewall which is lighter than Comodo FW but had some good nifty features like System Anomaly Detection, Process Detection etc