Dallaglio picks Toulon and Biarritz for Amlin final

But I certainly expect to see Jonny Wilkinson and Iain Balshaw heading back to Twickenham, albeit to The Stoop, for the Amlin Challenge Cup final on Friday, 18 May following this weekend's matches.

Toulon absolutely destroyed Harlequins in the quarter-finals at Stade Felix Mayol and haven't been beaten at home since September, so it's going to make it a hugely difficult task for Stade Francais Paris on Friday night.

Michael Cheika's side are also still smarting from last season's defeat to Harlequins in the final, while Toulon were beaten by Cardiff Blues in the 2010 decider, so both clubs have a point to prove in this tournament.

Both have the quality to go all the way, but I just can't see Stade succeeding at a ground where so many have already failed this season. What a game it promises to be, though.

The head-to-heads between Joe van Niekerk and Sergio Parisse, Jonny Wilkinson and Felipe Contepomi, and Steffon Armitage and George Smith will be key, and if Toulon reach the final, it will give Armitage the chance to push his claims for a return to the England fold.

Stuart Lancaster's squad is pretty stable at the moment, but a few more big performances could earn him a recall. He was excellent in the quarter-final and his power over the ball at the breakdown is proving to be very useful to Toulon.

I saw Biarritz beat London Wasps in the quarter-finals. It was close on the scoreboard in the end, and we had a pulsating finish, but in truth, Dimitri Yachvili's side were well worth the victory.

Both games between Biarritz and Brive in the Top 14 have gone with home advantage and I'd expect Biarritz to make it through to their third European final. Two defeats in Heineken Cup finals will have hurt them and the Amlin Challenge Cup not only provides them with the chance of picking up some European silverware, but also offers them an entry into next season's Heineken Cup.

Brive showed in their Pool they can be incredibly resilient, as their away win at Sale Sharks proved, but if they don't match Biarritz up front they will find themselves chasing the likes of Imanol Harinordoquy, Iain Balshaw and Taku Ngwenya. That won't be much fun.

So, my prediction is a Toulon v Biarritz final in the Amlin Challenge Cup - a game that would grace the last stage of any tournament in the northern hemisphere - but I'm not so sure about the Heineken Cup. Leinster can certainly win in Bordeaux, and keep alive their hopes of making it back-to-back titles, and I think Edinburgh can go to Dublin and get another great result.

Their quarter-final triumph over Toulouse was the result of the season and they have become the big story of the tournament. Ulster will obviously have more fans at the Aviva Stadium and have a hard edge to their side with their strong South African influence.

But I can see Edinburgh's game plan causing Ulster a few problems. We went to Dublin to face Munster back in 2004 for a Heineken Cup semi-final and the first thing we had to try to do was silence the crowd. We did that and eventually won the game, and the title. That will be Edinburgh's first task - to put the crowd on the back foot as well as Ulster.

At Stade Chaban-Delmas the next day it's hard not to go with Leinster given the fact they have gone 13 games unbeaten in the Heineken Cup and are the reigning champions. This is their third semi-final in a row and that experience is bound to count for something on the day.

Clermont are newcomers to this stage, but confounded me with their performance against Saracens. I didn't think they would be able to travel to Vicarage Road and match the English champions physically, but they did that and more.

To beat Leinster they will have to impose themselves up front and no doubt Nathan Hines will be leading the way against his old teammates. If Leinster get good possession, they showed in their quarter-final destruction of Cardiff Blues how dangerous they can be.

Brian O'Driscoll is back playing well and at full fitness and they have a great attacking weapon in Rob Kearney. They can also rely on the boot of Jonny Sexton to get them out of trouble.

It all adds up to a memorable weekend of European rugby action with two massive finals to follow in Twickenham next month.