Statistically, Lain is the most beloved girl according to the results of this thread so far.*
3/74**=4.054% of respondents have Lain-chan as their waifu.
Teto, Yui, Rikka, Tomoko, Yukiko, Birdy, and Yuno Gasai are in a 7-way tie for second place***.
*Assuming each person posted their waifu only once
**Counting text posts of agreement and disregarding a few irrelevant posts
***This data is provided merely for comparison and is in no way intended to imply one girl is better than another