Like Sado said Spamming is not everything. You also need to use them wisely. There is also a difference in gametime. Some players might win most games with rushing the other team with some horses (2vs2 for example). This fact doesn´t make them to very good players. However if you think about your strategy in every game and you´re trying to do new things, this shows already that you are little bit of "skilled".
Also note that there are different gamemodes. If one player lost nearly all 1vs1 vs other players, that doesn´t mean that he will be a bad player in a 4vs4. I guess you mean 60 Min PT Games with x1/x1 Speed, because I´m pretty sure that those "Pro players" have a nearly perfect strategy for their economy, so it works best as possible in 60 Min PT. If these players start play 90 Min PT Instead, they would need some time to improve their economy. Sado just listed a random lists of players that are playing really often, but it has nothing to do with their actual skills.
Also a skilled players isn´t someone who has 50 prebuilds on his pc saved and plays Richland, GoldenCliffs,Across the Desert all the time and is good on these maps. There are even players playing all the time on one location and don´t want to test another one. A good player is someone who could also make a decent army on a map that he has played once (without watching the mapeditor (even while the game is running) for 20 min
)
Actually spamm is nothing, not even 30% of winn as sb said, but its just nothing, if you haven't any fight skills. F.ex the guy - Ahmed, always making a lot of at PT, huge army but completly 0 skills, he is losing every battle, EVEN if you have twice less than this guy.
What about support game with editor. Its a good way to improve "times" in the game, so its the best way also to improve your economy and amount of PT troops. Its fairly good to use editor normally in every game, you can think about strategy before the game, you know where all sources are. I'm not talking about whole city which you can rise in the editor, because its useless, there is only a need to have a known how things looks like before the game, and PRO knows it
And if i would have possibility the define finally the best remake player, it would be the guy with highest fight/battle skills, and the guy who has the best and higher army producing per mminute after PT.
BTW. First time here, so hello !