Here is the list of starting PF's in the league:
Dirk, Faried, Draymond Green, D-Mo, Griffin, Boozer, Z-Bo, Thad Young, AD, Ibaka, Morris, Aldridge, Duncan and Favors in the west.
Milsap, Sullinger, KG, Marvin Williams, Gasol, Love, Monroe, West, Bosh, Bucks guy (Giannis?), Melo, Frye/Harris, 76ers guy (Mbah a Moute?), Amir Johnson and Nene in the east.
out of all of this 29 guys, ask yourself who has the better match up- us or the rivals. keep in mind that one of the main things Rudy does well is posting up and he can't post up most of this guys.
moreover guys like Nene, Z-bo, Aldridge and west will crash him (one of the reason LBJ stopped playing PF is that it is very tiring to go against this guys on defense- and Rudy is not even close in strength to Lebron or Melo).
Really the only guys I can see Rudy has an advantage on in this list (match up wise) are:
D-Mo, Boozer, Thad Young, KG, Marvin and Mbah a Moute.
while in the SF position he is a problem for a lot of weaker guys.