Kenwood is better than kitchenaid, I have both.
The chopped/grater is better on kenwood
Pasta maker better on kitchenaid
Meat grinder both are fine
Juicer I prefer kenwood like citrus thing.
I have so many of the extras on both I can pretty much say which is better where.
I love the kitchenaid look sure but I get frustrated when trying to grate something for a dinner and it being a struggle knowing the kenwood which is in another property, could handle it in a second.
I also make sd bread, have done for almost two decades now - kenwood is better at kneading it (i started by hand) the kitchenaid has a life struggle kneading my sd. But saying that - kitchenaid handles melonpan for the kids regularly without and issue (just had to buy paddle)
I also marginally prefer the whisk on kitchenaid. Just marginally.
Also as a seasoned baker I dislike how top heavy the kitchenaid is every time I'm lifting and closing the top bit. Kenwood definitely better there by far. But kenwood isn't as....pretty. 100%
Ohhhhhhh and the bits the extras attach to - that actually broke in my kenwood (titanium chef) so I had to HOLD some extras so they wouldn't spin etc it wasn't sturdy but even with that nonsense it chopped and grated better than kitchenaid...but it was annoying that it broke. Kitchenaid the extra bit is unbreakable. Struggling to find the work for it on this little sleep lol. The bit that attaches the extras, kenwoods broke the one I used the most and kitchenaid is just unbreakable. I could probs send for repair with kenwood though so I'm not too stressed but still.
Any specific questions shoot, I use both regularly enough.
I was considering changing the kitchenaid to a kenwood but it was a gift from partner and some special colour and some nonsense plus all the extras kitchenaid could sell him lol so it was a huge expense and I'd feel really guilty. It's not a bad machine at all. Just if you're baking regularly because it's kind of what you do responsibility wise it can grate on you if you KNOW there's a better product out there. I use these pretty much daily, rarely is there a day I don't somehow use an attachment or generally use it. Also if you get either stainless steel hooks and beaters etc - dishwasher safe. Ain't nobody got time for handwashing.
Kitchenaid I think any model is fine
Kenwood you must do research, the types of hooks etc. I got a chef titanium idk, a decade ago. 10/10 if I had to buy new one as I did consider replacing the kitchenaid I know itd be a long ass process and that partially put me off.