Thanks Veronese, I read your thread but my problem is different. I don't have any Bluetooth devices connected and always have Bluetooth set to off (Bluetooth, for some reason, makes me paranoid).
I tried with plugging in both an Apple Mouse and Keyboard to the USB port but to no avail, no response whatsoever ...
I tried the suggestions in Fixing a mouse or keyboard that is not working or is slow to respond in a Fusion virtual machine (1027805), which failed to resolve the issue as well.
Today, after I first made a backup of my Fusion 6 Application and it's preferences, I downloaded and installed the trial version of VMware Fusion 8.0.2.
After upgrading to Fusion 8, the login keyboard/mouse freeze issue is resolved. I have yet to discover if the hibernate crash issue is resolved or not.
It's a bit annoying though, since I don't need any of the futures in Fusion 8, that I have to purchase their ever more expensive upgrade to resolve a bug...
Since the end of technical support for Fusion 6 was 2015/09/04 (doh!) I felt that I don't have much of a choice to upgrading but those of you that have Fusion 7, which is supported until 2016/03/03 can perhaps keep your hopes up for a free patch.
There's many threads about the "sleep wake" problem on the VMware support forum, I don't know if it's all related or not but here's the biggest thread, perhaps someone could get something useful out of it (even though the participants doesn't seem very positive to resolving the issue)
https://communities.vmware.com/message/2333887