WHAT IS THE GREATEST WIN BY A WELSH PREMIER CLUB IN EUROPE?

There have also been some pretty good displays where Welsh sides did not win the game.
Barry Town's 3-3 draw with Aberdeen, Rhyl's 3-2 defeat in Atlantas which meant the Lilywhites qualified for the next round of the UEFA Cup on away goals, and even TNS' performances against Champions League holders Liverpool.
Yes, the Saints lost 6-0 on aggregate, but five of those goals came from Steven Gerrard and the WPL side could have scored at least a couple themselves.
But this feature asks the question which VICTORY was the best?
Here is the list of successes.......

CHAMPIONS LEAGUE
Cwmbran Town 3 Cork 2 (1993/94 - Cwmbran lost the tie)
Barry Town 2 FC Shamkir 0, FC Shamkir 0 Barry Town 1 (2001/02)
Barry Town 3 FC Porto 1 (2001/02 - Barry lost tie)
Barry Town 2 FK Vardar 1 (2003/04 - Barry lost tie)
TNS 3 Ventspils 2 (2007/08 - tie still pending).

UEFA CUP
FC Dinaburg 1 Barry Town 2 (1996/97 - Barry won tie)
Barry Town 3 Budapest Vasutas SC 1 (1996/97 - Barry won tie)
Inter Cardiff 1 NK Gorica 0 (1999/2000 - Inter lost tie)
Boavista 0 Barry Town 2 (2000/01 - Barry lost tie)
Bangor City 1 Sartid Smederevo 0 (2002/03 - Bangor lost tie)
Rhyl 2 FK Atlantas 1 (2005/06 - Rhyl won tie)
Carmarthen Town 5 Longford Town 1 (2005/06 - Carmarthen won tie)
Gefle IF 1 Llanelli 2 (2006/07 - Llanelli won tie)
Rhyl 3 FC Haka 1 (2007/08 - tie still pending).

INTER-TOTO CUP
Llanelli 5 FK Vetra 3 (2007/08 - Llanelli lost tie)

WINS IN EUROPE:
Games - Barry Town 7, Rhyl 2, Llanelli 2, Carmarthen, Cwmbran Town, TNS, Inter Cardiff & Bangor City 1.
Ties - Barry Town 3, Rhyl 1, Llanelli 1, Carmarthen 1

Comments please.....