"Which Imputation tool is broadly used?"
"Which Imputation method do you use? and why?"
In these days, I'm try to impute my genotyped data, but can't decide which tool should I decide.
Are you in an examination hall right now? Why the quotation marks?
Impute2! It is simple, easy to do, quick and it give you great results!
Michigan imputation service is also a good one. It is quick and online.