Ultimately, you have to decide for yourself.
I have never liked model designation badges. It reminds me too much of the old company car wars, where society judged people by whether they drove a 1.3L or a 2.0GXL. As a result, I have debadged all my cars, whether base or top model, from my 1988 Astra - my first ever new car - onwards, because my car is my choice, not a statement.
The Japanese went the other way and used to stick badges on for everything: 5-speed, Automatic, AWD, AWS, ABS, DNR etc
The only car I didn't debadge was my Triumph Stag, firstly because there was only ever one model, so no bragging rights were involved and secondly, because the badge itself (on the rear quarters) was a work of art... and it would've left a hole.
For me, the lines of the boot lids just look cleaner with only the star (or whatever) in the middle. I actually opted against a Volvo when they replaced the rear round badge with a wide-spaced V O L V O, choosing an Alfa 159 instead.
I love that my current CLS500 SB was never badged from new and is a wolf in sheep's clothing. It makes that kick in the small of the back and the accompanying burble/grunt even more fun.