MTG Salvation

I think because of the diversity of the modern format it's likely a little more beginner friendly than Standard is. I've seen people come into a modern local tournament and do rather well with some strange decks but it's very rare that I see that in standard. The only downside of modern over standard, in my opinion, is the sheer amount of available cards available. But with your previous experience, I think that will be less of an issue. And admittedly, it's a pretty easy hurdle to get over if you decide to play semi-regularly.