Just to add a bit of fuel to this fire - I have been burnt many times trying to cross PSA & BGS cards to SGC........
I only collect vintage and I feel like SGC does a great job with the best customer service in the industry AND they have the best looking slab - bar none - but if I were to slab anything modern - I would go with BGS.
Here again the main motivation would be to try and hit the elusive BGS 10 which is pretty much like winning the lottery.
(IMHO)