Garmin vs Lowrance

[Big Kahunaz]

Glad this was posted......I'm looking at upgrading myself and am looking at the HDS-7 or the Garmin 541s. I've had lowrance and am familiar with the system from having the lcx-25 model. I like the look and ease of the garmin....but not sure how detailed the graphics are for the inland lakes? (basically im looking for the best unit for salt and fresh water fishing....and need the best maps and detail for freshwater....guess my concern is i was very happy with the lowrance and concerned if garmins depthfinder/map graphics are comparable.) ANyone here gone from one to the other that can give some Pros and cons for each unit? and what's the difference b/w the hds 7 and hds 5? Are the garmins just as good for setting waypoints and updating?
Reviews on each welcomed!