The Hotmaps Platinum card has regional coverage with Nautical Charts and has the satellite overlay, 3D, and photos. It can have the Sonar Charts map layer added.
The Navionics+ has all the Nautical Charts for the US and Canada and can have the Sonar Charts map layer added.
The current Hotmaps Platinum regional cards and the current Navionics+ card are the same price.
Every new purchase of a Navionics product includes a year of Freshest Data Updates.
No map product will be "best" for you if it doesn't have the locations you want. You can view the current Navionics maps on the Navionics website's Web App to see if your waters are included.
The Lowrance Insight maps may or may not have what you need.
I have Hotmaps Platinum cards and don't use the 3D, Satellite Overlay, or Photos, I use use the Nautical Charts and Sonar Charts.
I have both versions of the Navionics+ cards also as well as some Hotmaps Premium regional cards.
Edited by Wayne P. (07/15/16 10:12 AM)
Humminbird Helix 12 CHIRP SI, 1198c SI, 1198c SI, ONIX 10 SI NT, Helix 7 CHIRP SI GPS G2, 360, RC-1