It is a good idea to try the g3 and find out which device and it's features, fit to your liking the most. I've had at least 6 of the top rung Androids in between Blackberry devices. The way a Bold feels combined with the BB OS is my favorite. Even if I had to work around a browser issue (which is not the case with OS 7, it works great). For me, OS 7 is great, and when OS 10 releases, then even better.
First good luck in the land of Android.... you will find many an issue with Andoid as with all smartphones..... remeber just because you had issues with your device does not mean all the devices are the same... I have a Playbook that is dead and I cannot return it..... really annoyed... but have had another replaced when I had issues.... do not think RIM makes defective Playbooks because I had issues....
I can understand why you'd switch. I just recently ordered a 9900, while my partner (of our corporation) decided he wanted an S3. I strongly recommended the Nexus just for support/updates reasons, but i digress... The S3 is a nice phone, but i got a 9900 because i do more work than he does j/k.