I use Parallels on my iMac and Macbook Pro. It seems to run fine on my iMac but kind of causes my MBP to become a little sluggish and fans to get pegged. I was speaking with someone that runs several VMWare VMs on their Macbook without any problems at all. They mentioned my MBP should have more than enough resources to handle several VMs.
Does VMWare generally perform outstandingly better than Parallels on Macs?
Here are my machine specs (both running OS X 10.10.3):
iMac 3.2 Ghz Intel Core i5 16GB DDR3 RAM NVIDIA GeForce GT 755M 1024 RAM 500GB SSD w/25GB free space VM is allocated 2GB of RAM
Macbook Pro 2.7 Ghz Intel Core i7 16GB DDR3 RAM Intel HD Graphics 4000 1024 RAM 500GB SSD w/47GB free space VM is allocated 2GB of RAM