PPPoverEthernet vs. PPPoverATM

I'm about to turn to ADSL connection to Internet and I'm taking in consideration all the choises the Provider offer. I was surprised in seening they offer an ADSL service not only using the PPP-over-Eth protocol, but also with the PPP-over-ATM. So my question is: if I choose the second system, is d

PPPoverEthernet vs. PPPoverATM

I'm about to turn to ADSL connection to Internet and I'm taking in consideration all the choises the Provider offer. I was surprised in seening they offer an ADSL service not only using the PPP-over-Eth protocol, but also with the PPP-over-ATM. So my question is: if I choose the second system, is