For what purposes would you be using the bag? As a work bag? Running errands on the weekend?
What size are you considering for both of these bags?
Aesthetically, I prefer the loulou, but that’s obviously a personal opinion. I just received my medium loulou a few days ago, and while it’s an absolutely gorgeous bag, I found it to be a bit too big, bulky, and heavy (especially when worn as a crossbody).
Definitely give us a bit more information on what you’re looking for, and I’m sure some of the more helpful members will chime in!
I exchanged my medium loulou for the small yesterday, and I’m very happy with decision (with a lot of helpful info from @Antigone!). The small has enough room for your essentials, and it’s beautiful.
If you don’t carry a large wallet, or tons of stuff, I’d also recommend the Lou camera bag.