I am always interested in seeing what people are using and like, and why. Of course this all depends upon the job you need to do at the time you use them. So what are the tools you use the most? Also what tools do you have that are different, and how do they work? What tools do you have that you sometimes need and do the jobs they were made for well?
Having a bit of land to deal with I found that getting the professional tools is well worth it for me, but this is a what works for you topic, we all have different needs for tools.
For me the number one tool is a tractor and all the attachments that go on the back of it, I use the front end loader bucket so much that I have never taken it off; even though it has a quick detach system. I have 3 weed eaters but I only use the pro Sthil one, I have a number of attachments for it. With so much woods I also have a collection of chainsaws, there again I only use the Sthil ones. The only other brand of chain saw I would buy would be a Husqvarna. I mow with a 6' finish mower on the tractor, and have two riding mowers to do the edges. One is a JD, but if I was to buy a new one the Husqvarna look good.
Over time I have managed to collect a number of hand garden tools, some work better than others,
for hand tool I use a pointed hoe and a flat hoe the most. Each tool has it's use and therefore needed.