I am still not convinced by Schumacher. Narrow talent window. Short sprints between pitstops then only Hakkinen was close. Neutral regulations and tyre management skills being required and he was midfield.
Lets get this straight. Schumacher has narrow talent window because he managed to be competitive driving cars like 191 (age 22), B192, B195, F300, F2002, F1-248, W03 (age 43)? Compare each off these cars and tell me their similarities and differences. Furthermore, compare regulations of 1991 with 1998 and 2012. Also, guy who drove F1 car for the first time in his life and was immediately few tenths of a second from the best lap has a narrow talent window? And yeah, I bet it was piece of cake driving cars in that short sprints close to their qualifying pace for entire race.
What are those neutral regulations that are specific for years between 2010-2012 that required skills? And please don't talk about tire management skills in Pirelli era. They only made complete mockery out of F1 in past few years.
Here are some examples of narrow talent window.
Spa 1992, 1995, 1996, 1997, 1998, 2002, 2011, 2012, Barcelona 1994, 1996, Suzuka 1998, 2000, Estoril 1993, Indianapolis 2000, Hungary 1998, Monaco 1993, 1997, Imola 2003, 2005, 2006, Magny-Cours 2004, Montreal 1998, 2003, 2005, 2011, China 2006, Interlagos 2006, Nurburgring 1995, Monza 1991, 1996, 1998, 2000, 2003, 2006, 2011.
And there are plenty more examples. Look at least some of those races. Completely ignore all the numbers around Schumacher, ignore all of his titles, all of his victories, all of his podiums, fastest laps, poles. Just look at those races. It weren't the numbers that made him one of the best, it was his driving.
Schumacher is not perfect, like any human being he has his flaws, but no one, and I repeat, no one can question his racing ability and his position as one of, if not the best of all time.
J. M. Fangio, Alberto Ascari, Jack Brabham, Jim Clark, Jackie Stewart, Niki Lauda, Alain Prost, Ayrton Senna and Michael Schumacher. I consider these nine men as the top drivers of Formula 1 because of theirs driving abilities, achievements and overall impact they had on this sport.
So to get back on topic, no, Rosberg and Ricciardo are not tier 1 and they probably won't be. From current generation only Hamilton, Vettel and Alonso have that capability. Only time will tell will they reach it.