Greg,
I cant comment on hand vs foot, ive always used foot control on a bassboat.
As far as Minnkota vs Motorguide. Minnkota all the way. In my lifetime i have owned 5 motorguides and every one(with one exception) has busted within a year, most within months. My fav was the 50# brute that my champ came with. Cooked 4 armatures in one summer. they replaced the whole motor twice only to have it continue to cook. The dealer also replaced every part in the TM system including the wires. The only one that never broke was the one included with my nitro, i never gave it a chance. It was removed and swapped for a minnkota the second it hit my driveway. I have also never liked motorguides mounts and every one i have ever used has been loud.
I currently own 3 minnkotas. One is my 36# tiller mount. I have had that thing at least 15 years. Its seen a lot of use and the only thing that has ever been replaced is th econtrol switch, i just flat wore it out. I still use it when i use my rowboat and its still quiet and works great. I also have a 74# maxxum that i bought to put on my champ in 98. When i sold the champ i kept the trolling motor and put it on my nitro. I ran that one until late summer2005. I wore out the mount so i replaced the whole deal. The only problems i ever had with that 74# was with the control box on the top of the motor. I can only take being run into docks so many times before it breaks
I still have this motor kisking around as a spare. I currently have an 80# maxxum pro on my nitro. Its been problem free in the year and change i have used it. Like my other minnkotas its been solid, super quiet and great on battery life.
I recommend the maxxum line highly. The mount is sturdy, they are quiet and tne new ones even have temp in the universal sonar. Get a 24 with the maximizer circuit and you will be all set.
Unless the foot control is recessed mounted your back will give you problems if you are on the TM for any amount of time.
Bill i have to disagree with you on that. My foot pedal is not flush mounted, never has been and i dont have any issues with my back. Im also one of those guys that pretty much has his foot on the pedal all day. I dont use a seat either unless the water is rough.
I can see if you already have back problems that it could be an issue but i dont have back problems and the pedal does not aggrivate it in the least bit.