Get some Churches if you have no imagination, want to be wearing the same thing as everyone else in your office and don’t intent to change your shoes for the next 15 years.
Loakes are better value (which means you can change them more often), but beware, some of their models/range are no longer made in the UK (now produced in India), and the quality has suffered. After years of selling Loakes and rarely having an issue, my uncle’s shop has seen lots coming back, predominantly the ones with “Made in India” under the tongue.
Grenson are nice, a bit more individual than the Church brigade, reasonably priced. They just don’t seem to fit me for some reason though.
Trickers are nice, but I struggle to find a pair that are suitable for work that don’t inevitably end up looking exactly like Churches.
These days, I tend to shop around for a few pairs of cheaper, and slightly more modern shoes. It means they withstand the winter weather better (only wearing each pair once every few days), it makes me look like I actually own more than one pair of shoes (which doesn’t seem to be the case with everyone in my office who wears Churches), and it’s nice to have a mix of shoes which look good with a variety of suits and get ups. I’ve got a pair of Loakes and Grensons which get the most use at the moment.