Mr. Van P got the ball rolling, thankfully, and I want to hone in on some decisions. I like the idea of reducing the number of races, to simplify things a bit for the players and Clydesdale too (not that he'd ask us to do this, but it can't hurt). For me, the presence of races I couldn't follow watered things down somewhat. So let's explore a shorter list. I'll categorize and let me know which categories should be in or out, as well as which single races should be moved.
[One entire category of requested input: can you help me sort out the good 5-7 day Spanish regional races from the crap?)
Grand Tours (obviously in)
Tour
Giro
Vuelta
Monuments (ditto)
Milan-San Remo
Tour of Flanders
Paris-Roubaix
Liege-Bastogne-Liege
Tour of Lombardy
Other Big Classics (solidly in)
Het Volk
E3 Prijs Vlaanderen
Gent-Wevelgem
Amstel Gold
Fleche Wallonne
Clasica San Sebastian
Gp Ouest France-Plouay
Paris-Tours
Zuri-Metzgete (if it happens)
Big Stage Races (solidly in)
Paris-Nice
Tirreno - Adriatico
Tour de Romandie
Dauphine Libere
Tour de Suisse
Deutschland Tour
Secondary Classics and Stage Races (debatable, I say yes)
Dwaars door Vlaanderen
Criterium International
Dredaagse de Panne
Vuelta c. al Pais Vasco
Euskal Bizikleta
Vattenfalls Classic
Other Notable Classics/Stage Races (debatable, I say no)
Kuurne-Brussels-Kuurne
Vuelta a Murcia
Dreidaagse West Vlaanderen
Rund Um Koln
Vuelta a Castilla y Leon
GP Waregem
Brabantse Pijl (borderline)
Klasika Primavera
Circuit de la Sarthe
Scheldeprijs
Tour de Georgia
Giro del Trentino
Rund um den Henninger Turm
Giro della Toscana
Vuelta Asturias
Volta a Catalunya (borderline?)
Route du Sud
Eindhoven TTT
Tour of Austria (nice calendar slot)
Sachsen Tour
Brixia Tour
Wallonie Tour
Vuelta a Burgos
Eneco Tour
Tour of Poland
DanmarkRundt
Tour of Missouri
Tour de L'Avenir
Tour of Britain
[Additions should come from this list]
Everything else that's not in such as...
Tour Down Under (impracticably early)
Langkawi
Tour of Qatar
Tour Med
Tour of California (sorry)
Vuelta Andalucia
Nokere-Koerse
Olympic Road Race
World Championships
Did I miss (or misplace) anything?