Kurt Busiek and George Perez had a fairly epic run on The Avengers starting in the late 90s. They had the team take on Ultron and Kang. They had a mix of old and new characters. They made Carol Danvers interesting (yes, Jenny, I said it, and she’s been interesting ever since). There was beautiful artwork, stories that showed great understanding for everyone on the team, and a silent issue where Washington D.C. got destroyed, but the Avengers managed to get George W. Bush out, and only George W. Bush out, before everything went boom. I did not make that up.
They also put a new character named Triathlon on the team, and he was fairly lame. I only recently learned why.