Graph/chart brands

This is a thread to see which graph/chart brand everyone likes and why.
I would like to get some input so i can purchase one maybe two for my boat.

[teamlund]

I was a lowrance guy until I had to deal with their customer support....Any brand unit can crash and need to get fixed but being without a unit for over 4 months in unnacceptable...I now have a Hbird and had to deal with their customer service twice. Both times it was small items that didnt hold me up for more than 2 days getting parts and both times I was not charged for the parts and they ended up on my front door within days of talking to CS..........Hbird all the way.