The crash report has a few suggestions. Did you try them?
"EnderIO: Found the following problem(s) with your installation:
* An unknown AE2 API is installed (rv3 from appliedenergistics2-rv3-beta-6.jar).
Ender IO was build against API version rv2 and may or may not work with a newer version.
* The RF API that is being used (1.7.10R1.0.2 from <unknown>) differes from that that is reported as being loaded (1.7.10R1.0.13 from EnderIO-1.7.10-2.3.0.428_beta.jar).
It is a supported version, but that difference may lead to problems.
This may have caused the error. Try reproducing the crash WITHOUT this/these mod(s) before reporting it."
I know in previous versions, running F/A with CoFH core caused crashes. I thought it was fixed, but it could still be the problem. Try starting a world without CoFH and let me know if it works. Sorry about the crash.