A T-plate car is generally accepted to be easier to set up than a link car, and to be much better on asphalt. About the only thing people can find to say about the advantage of a link car is that you don't have a T-piece to break! Set-ups posted here are very, very similar for T-piece cars, and vary more for link cars.
Link cars do well on high-grip tracks - just take a look at the results from Cleveland, IIC, Roar Nats, etc, over the years. However, there is too little attention paid to cars like the Speedmerchant, Diggity Designs and other non-CRC cars. They seem to have a quiet, but very dedicated following. T-piece cars do well on both asphalt and carpet, and a link car has never won the IFMAR Worlds on either surface.
Have to agree with Marcos, the DB 12R is the best of both Worlds, but yet to be proven in big races. I'm gambling on one, and don't think it is too much of a gamble!! As I don't want you to be disappointed at all with your first experience of 12th Scale, it would be an T-piece car, with either a 12L4 or CRC T-Fource top of the list. HTH