There is a big difference using the Aeropress of plunging immediately after filling with water and waiting a minute or longer, then plunging. Plunging immediately, as the inventor suggests, makes a different cup than any other method I know of. I use a gold filter and have tried both methods. Waiting a minute before plunging gives me a cup that is almost identical to that made with a Meilitta pour-over filter. Plunging immediately causes a loss in some of the complexity of the coffee, but with many varieties it is very pleasing none-the-less.
That said I would note that this is not an ideal world; it is difficult to compare because taste is so subjective. My taste from one day to the next varies greatly. One can only prepare, taste and/or drink so much coffee in one day, repetitive testing is very difficult and if one is honest the results are often disturbingly variable.
Warning:
[rant mode] My suggestion is always the same: Try different coffees and different methods, drink what you like and forget what you don't like. In the end, Chemex, Eva Solo, Melitta, Aeropress and all the rest are just gadgets to help one extract the essentials from ground coffee beans. In my experience the folks who go overboard for one or another method have spent a lot of time using that method and have not really done the same with other methods. There is a lot of subjective prejudice involved and one usually does best by just deciding for oneself and not proselytizing or believing the words of others.[/rant mode]