I have:
3- 301A Singer /tan short bed/tan long bed -black shortbed
1 - Sears Kenmore Vintage
1- Green Elna Supermatic
1- 401A Singer in the sewing cabinet
1- 15-91 Singer in the sewing cabinet and they are ALL great machines.
My pick would be the 301A Long bed Tan Singer due to it's performance, comfort, compact and portability.