I went with lowrance (same company as simrad) just because they have more down resolution which benefits me more fishing and diving.
Have to agree the touch is no problem in open centre console boats and theres always the option to simply turn off touch and use buttons only if it starts to rain hard.
After seeing Dr Sonar compare chirp with non chirp I decided to stick with lowrances 200\50htz. After seeing the improvements in side-scan from my old hds unit I also decided to stick with the lss2 transducer over 3d but Im still considering the 3d.
Heres a couple of screenshots (all in metric) as you can see sidescan does an ok job at 30kh but really improves at lower speed. Most of the widths are 50-60m each side, which is like scanning a football pitch.
30kh and still showing both sides
found a new dive site or two
driving through krill with whales to the left
adding sidescan to the chart page