What you could do is ask what if there was no Sudsy, and give Swain those 5 titles that Sudsy won, giving Swain a total of 11 titles. Taking Sudsy out completely makes the playing field easier for Swain. Now let's say Kane wins 5 more titles which is not unreasonable so he has a total of 12 titles. Kane is better. Based on results, the peak age for playing is 29 years old* so in their first encounters Swain had the advantage, but Kane beat Swain 4 times when Swain had the advantage and Swain only beat Kane once when Kane had the advantage.

1) 1999-00 4/30/2000 Las Vegas, NV Bud Light Irt Pro Nationals Q Swain, Cliff beat Waselenchuk, Kane 4,(7),(5),1,8
- Swain was 34 and Kane was 18; Swain was 5 years away from peak and Kane was 11 years away

2) 2000-1 12/10/2000 Lakewood, CO Coca Cola Pro-Am 16 Swain, Cliff beat Waselenchuk, Kane 5,9,(2),4
- Swain was 34 and Kane was 19; Swain was 5 years away from peak and Kane was 10 years away

3) 2000-1 2/4/2001 Boston, MA Foxwoods Pro-Am S Swain, Cliff beat Waselenchuk, Kane 7,(5),2,7
- Swain was 34 and Kane was 19; Swain was 5 years away from peak and Kane was 10 years away

4) 2001-2 11/20/2001 Memphis, TN Hilton 6th US Open Q Swain, Cliff beat Waselenchuk, Kane (7),1,8,(8),5
- Swain was 35 and Kane was 20; Swain was 6 years away from peak and Kane was 9 years away

5) 2001-2 12/9/2001 Lakewood, CO 12th Annual Holiday Pro-Am Q Swain, Cliff beat Waselenchuk Kane 5,4,0
- Swain was 35 and Kane was 20; Swain was 6 years away from peak and Kane was 9 years away

6) 2001-2 1/27/2002 Boston, MA Foxwoods Pro-Am Q Swain, Cliff beat Waselenchuk, Kane 8,7,(13),(11),3
- Swain was 35 and Kane was 20; Swain was 6 years away from peak and Kane was 9 years away

7) 2001-2 3/3/2002 San Diego, CA San Diego Open Q Swain, Cliff beat Waselenchuk, Kane 10,6,(7),8
- Swain was 35 and Kane was 20; Swain was 6 years away from peak and Kane was 9 years away

8) 2002-3 11/3/2002 Chicago, IL Halloween Classic S Waselenchuk, Kane beat Swain, Cliff (6),(7),10,10,7
- Swain was 36 and Kane was 20; Swain was 7 years away from peak and Kane was 9 years away

9) 2002-3 11/24/2002 Memphis, TN Choice Hotels 7th US Open S Swain, Cliff beat Waselenchuk, Kane 7,(5),2,7
- Swain was 36 and Kane was 21; Swain was 7 years away from peak and Kane was 8 years away

10) 2002-3 2/2/2003 Coral Springs, FL Americas Cup S Waselenchuk, Kane beat Swain, Cliff (8),9,9,7
- Swain was 36 and Kane was 21; Swain was 7 years away from peak and Kane was 8 years away

11) 2002-3 2/9/2003 Austin, TX Longhorn Pro-Am S Waselenchuk, Kane beat Swain, Cliff 7,(8),10,3
- Swain was 36 and Kane was 21; Swain was 7 years away from peak and Kane was 8 years away

12) 2003-4 8/24/2003 New Orleans, LA Summer Cooler Pro-Am S Waselenchuk, Kane beat Swain, Cliff 3,0,(5),5 **
- Swain was 37 and Kane was 21; Swain was 8 years away from peak and Kane was 8 years away

13) 2004-5 9/12/2004 Stockton, CA 22nd George Spanos Stockton Pro-Am S Swain, Cliff beat Waselenchuk, Kane 7,(5),2,7
- Swain was 38 and Kane was 22; Swain was 9 years away from peak and Kane was 7 years away

* Still to this day (Feb. 2013), Kane has not lost a match without injury since 2009. In 2010 Kane turned 29. Many other anecdotal evidence indicate 29 is the peak playing age, e.g. Tim Landeryou at nearly the age of 29 beat Mike Green and won the two Selection Events (Nov. 2012 and Feb. 2013) in Canada for the first time.
** Assuming roughly the same distance away from peak playing age, the advantage goes to the more experienced player.