no matter what anyone says; after all is said and done
Used to introduce a conclusion or opinion that holds true despite various criticisms or circumstances. Often implies 'when you get down to it' or 'in the end'.
See also: なんだかんだ
No matter what anyone says, family is the most important thing after all.
Regardless of what people say, he's actually a good person in the end.
Kana spelling for the first part; common in casual writing.
Mixed spelling with kana for 言って; also common.
Combination of 何だかんだ (this and that, various things) and 言っても (even if one says). The phrase literally means 'even if one says this and that', and is used idiomatically.