Which is the greatest, the pure passion of the Principality, a carnival atmosphere in Paris or the occasional hushed hostility of Twickenham?
On the Six Nations Greatest podcast, former British and Irish Lions captain Sam Warburton and ex-England scrum-half Danny Care discuss that topic.
The stadiums have been ranked by Warburton and Care. Pick your order at the bottom of the page after reading.
I think as a fan, it is one of the best. Families start booking flights when you are away to Italy.
Is the rugby as good as it will be on other weekends? No, because of the competition. I like walking into the arena and the Olimpico. You are a long way from the crowd and it can be difficult to get back to your seat.
It is a long walk out and you have to climb up the stairs to get to the stadium.
The fans are far away and the Olimpico is wide. The fans go quiet quickly when the Italians are in the game. I wouldn't put it near a place like Twickenham, a great stadium, great country, and great away trip for fans.
I loved it at the Aviva. The pitch was perfect. The changing rooms are clean. The stadium is beautiful.
The stadium has a great atmosphere and the Irish are very active there. Ireland at home is very difficult and they thrive off that.
It is an incredible atmosphere and we have often played there on St Patrick's Day. You get the fun, festival-type vibe but you also get the vibe that you are not very popular in England.
They want to make it hard for you. It is hard to win there because the crowd just gets into the game. I only won there once.
It is a beautiful stadium with lovely big changing rooms and it is very French.
That was the most hostile place to play. A lot of Welsh and Scottish fans are singing. It is very hostile and aggressive. The most intimidating place I found was the stadium.
I don't think I've heard noise like that when France are on it. They will boo their own team and whistle when they are off.
When you get off the bus at Murrayfield, they are so close to the bus that they call you all the names under the sun.
Scotland, when you get there, you feel a genuine hatred for those people who want you to get hurt. I don't have a lot of great memories from playing at Murrayfield and I think the fans make it very uncomfortable.
Even though the stadium is old, it is still the same as when I used to watch rugby as a kid. The stadium is old but it is unique.
wickenham is the home of rugby. I had tears in my eyes when I ran out the first time.
When it's loud, it's as good as any other Six Nations stadium, but when it's quiet, you feel it.
The biggest cheer of the day was when someone threw a paper airplane and it went through the posts, because we were playing badly.
The bus would come in a certain way. You can see people in England shirts in the high streets and the bus pulls up 100 metres away from the stadium.
It was hostile but I loved it. We were like the small brother coming across the bridge and I really felt the rivalry. If we were winning it would go quiet so it was important to silence the crowd.
The fans are close to the action and the proximity to the pitch. We had to use body language because we couldn't hear each other.
100,000 people drinking within a half mile of the stadium are in the city centre.
It is the hub of the city. It is definitely the best location. I think I am being biased, but even former New Zealand captain Richie McCaw said you haven't completed your international graduation unless you played at the Principality.
I love the Principality because you will see 90-year-old women sticking two fingers up against the bus in the city centre.
There was a guy with all the face paint on who ran and headbutted the bus. That has stuck with me, how passionate that guy was. It was the first time one of the senior players had told a player to take their headphones off.
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