Baby Shower

I know everyone does things differently and in the end I'll do it how I want. I'm just wanting to hear some different opinions. First of all, how do you feel about coed baby showers? I feel like it used to be strictly women only, but now it's more common for men to be involved as well. And secondly, how many guests? Just a handful of immediate family and maybe a couple close friends? Or do you invite whole family, including grandparents, aunts, uncles, cousins? Third, do you provide a meal or maybe just a few snacks? I want to start planning mine soon, just looking for suggestions. Thanks!