Blue & Green Sympodium or Green Star poly?

[Funtrader]

Thinking of adding one to my tank so it can grow in my overflow black cover. But not sure wich one will be better. I understand they both grow like crazy and one will need to make sure not to put it on my main rocks as they can take over. But if you had the choice which one will you go with?

 

[tbrown]

Both are highly invasive but I hear more horror stories with Sympodium.

I love my GSP.