Biggest chance of upset - FA Cup Round 4

[peskybendben]

So, with the draw for FA Cup Round 4 been done, what game do you think has the biggest chance of an upset happening. I have added a poll with just the games that could have an upset, for example, matches with 2 teams from the same league aren't on there.

My guess, Southampton vs Man Utd! (6)

Here is the full draw:
Torquay v Crawley Town or Derby
Watford v Brighton
Bolton v Wigan
Arsenal or Leeds v Huddersfield
Fulham v Tottenham
Everton v Chelsea
Southampton v Manchester United
Swansea v Leyton Orient
Burnley v Burton
Birmingham v Coventry
Doncaster Rovers or Wolves v Stoke or Cardiff
Notts County v Leicester or Man City
Stevenage v Reading
Aston Villa v Blackburn Rovers
West Ham v Nottingham Forest
Sheffield Wednesday v Wycombe or Hereford

 

[Matty]

Burton to take Burnley to a replay and turn them over.

 

[CtPauley]

why do you have two threads on this?

 

[*Jamess*]

why make another thread?