I don't have any special kit as my favourite one but some kits reflecting oldtime main street sceneries I like more when building my fictional roadname coming through town like this:
From the left side on Main Street:
DPM - Frontstreet Building and Corner Café than behind the place Cornerstone's Merchants Row followed by old Kibri Kit (American Model Builders Kit) of Frontiers Town Ammunition Shop followed by Lifelike Police Station, ahead Church the town Monument an old WW 1 Field Artillery Canon behind the level crossing a Cigar & Tabacco Shop and the Woodland Scenics Pharmacy
In the middle a self built loading dock and freight house there behind the DPM modulars learning kit and the woodland scenics gas Station.
Behind in background one another DPM Small shop building ahead a a bigger School house scratchbuilt from two Auhagen RR Station Buildings of prussian style.
1920 era vehicles from Jordan Highway Miniatures and Preiser People of 1900 and old time Billboard Offering Posters.