Definitely the Dior!! No doubt!
I have the same Chanel bags as you do and the mini. I am also dangerously close to buying the My Lady Dior in gray (either that or the Hermes Evelyne). I've tried the Dior on in the boutique and I also have a medium lamb Lady Dior.
Dior's lamb is so luxurious and durable. My medium has literally fallen on to the hard concrete floor and there wasn't a single scratch!! I've had it for a couple years now and it looks brand new. I'm so impressed with the quality that I'm considering adding the My Lady Dior even though I had no intention of repeating this style. But the struggle is real lol.
In terms of capacity, the mini is definitely smaller. I can fit a card holder, key pouch, lipstick, small tissue pack, phone and I can squeeze my sunglasses on top. The Dior will hold that and a small wallet and something else. I know some people will fit more into their minis but I don't like overstuffing my bags. So it depends on how much space you need for your necessities.
I like the versatility of the Dior more too. I know some people use the mini for cocktail dresses but I like it more for day. The Dior looks dressier to me but since it has the crossbody strap it can also be casual.
Good luck!!
I think I saw your thread, I like Evelyn too, tough choice

I don't need another medium size bag and I like the strap on the MLD so much but I just wonder will it be too small for handheld. I have a mini peekaboo at 23cm wide and there's plenty of room for my things but it looks so small when hand held - I'm 5'4 and UK size 10. Whenever I try a new style of bag I always get black, blue or grey then if I find I love it a lot I'll go back for a brighter or summer colour one later on so I'll probably opt for black this time. And as much as I love silver hardware I think the champagne hardware looks really nice on this bag. Have you decided yet?
I like the strap and light gold hw on MLD too. I sent my mini back. Now I have to decide on color for Dior [emoji28]
They have bright red with old pins and scarlet red with new pins. But I like darker scarlet red and old pins


