Created a spreadsheet to use as a to resource to help you decide what Hero you need play, to take care of whoever is going off on their team.
The sheet will be consistently updated throughout the beta as well as going into launch. If you have any ideas on what is or isn't there, what I put in the wrong place, or just disagree with; feel free to PM me here, or use the other contact methods on the sheet.
I am working on a Counter guide to each hero (Bastion is done so far, Tracer is next) for both the Beta and Launch. I hope these guides will help clarify my thoughts on counters, and provide the insight to how the counters best function. So if some choices do not have self-evident logic I hope to clear that up through the guides and feedback from them!
Good luck out there!
Launch day edit: Thank you everyone who contributed to this thread and helped me refine this Spread-sheet. There are too many of you properly thank individually, so thank you all of you for taking the time to argue your thoughts and grow this sheet. Without this discussion It wouldn't have gotten this refined in 2 weeks. Thank you and good luck today at launch!