i am a Leo. and Leo is always eager to win. so here's it.
i did research on how many groups of Christians are they. anyway
the most recognized ones are

• Anglicans,
• Roman Catholics,
• Methodists,
• Baptists,
• Brethren,
• Orthodox,
• Quakers,
• Presbyterians and
• Mennonites to name a few well known groups. These groups share a great number of beliefs and all try to live like Jesus.

so there we go. people who doesn't know well about Christianity usually lumps up them as "Christian".

that's all i have to say.