MinnKota or Motorguide?

I'm having issues with my current motorguide tour edition trolling motor that came on the boat (2005). It has definitely seen better days and has a handful of little things that are starting to add up including:

• To release the trolling motor from it's rest position you have to push down and pull the string at the same time.
• To lift up the motor you have to jerk on the cord repeatedly for it to finally release.
• The speed control "wheel" will work fine at times, but other times it will only work at half speed or higher (this is a newer problem)
• The prop will loosen up after a couple trips running through the weeds on a consistent basis.
• The cables have broken once since I've had the boat, and the wire has come off the wheel at times that seem like the worst timing ever regardless of how I adjust the tension.   

I'm sure some of these issues come with the wear and tear of fishing hard for 6 years, but I've heard many issues with motorguides from other people that have them.

At this point, I'm seriously leaning towards replacing the current one with either the MinnKota Fortrex or the Maxxum 101 for my ZX225 Skeeter unless someone here can convince me otherwise. So my main question is, whats your preference and why for brand and model?