As a guy who makes his living with these tools, it's hard to "de-tune" to the needs of an average hobbyist, but I'll try.
Since production (speed) likely isn't a priority, changing bits and/or set-ups is part of the deal. The OF 1400 is the "do it all" choice. It is one of the most versatile routers around, but as with most things that "do it all", there are disadvantages too.
That said, if you are only going to have one.....it is the one to get.
There are times when the smaller OF1010 would do the same task easier, just because of the smaller lighter package, but that size can be a disadvantage in other cases.
The ability of the OF1400 to use 1/2" shank bits is a big thing because the availability of 8mm shank bits is fairly limited. There are out there, but not at all what you would call common in the US.
With very few exceptions, I use 1/2" shank bits whenever the cutter diameter is 1/2" or greater.
Cut quality is almost always better with the bigger shank.
I suppose that it depends upon what kind of things you make or how much you would use a router table, but I would have a dedicated router for one, in that case. Swapping one in and out is a hassle and you will avoid using it because of that.
As far as routers for a table, I don't think you can beat a Triton. They function very much like a built-in router-lift.
I'm a bit over the top for most people, but I would say that the minimum would be 3 routers. One capable of 1/2" shanks in a table, another also 1/2" for freehanded use, and a small palm router (trimmer) for the light duty 1/4" shank bits.
Triton MOF001 or Triton TRA001
OF1400
Bosch Colt or Makita RT0701
If you only have one, the OF1400 for sure.
