This library will add Leaflet vector (Point, Polyline, Polygon) layers from multiple geo web services including ArcGIS Server, GeoIQ, Arc2Earth, CartoDB, GIS Cloud, etc.
Prefer Google Maps? Check out Google Vector Layers.
Docs + Demos
That said, if you feel like there's an issue with this library or just want to report things here that's fine too, but check the issues over at Google Vector Layers first to see if it's already come up.