what site to use for transaction values these days?

[tonto]

It used to be MtGox was where you went to establish accepted value for btc transactions.  Is MtGox still the accepted site, or is there another one used now instead?

[velacreations]

I use bitstamp or coinbase, MtGox is now like 15% higher than everyone else.

[CoinsForTech]

preev.com