I bet that Panasonic takes pretty good pics for its price. Not so sure Leica (the lens manufacturer) is any better than other manufacturers these days, but years back, they were the cream of the crop. Of course technology has marched on and other manufacturers have caught up. I personally feel that Point and shoot manufactures enlist lens makers such as Leica and Zeiss for their very lond standing reputation for fantastic optics as a marketing gimik. Sure, they are great, but so are Nikon's and Canon's lenses. Could the average person tell which lens took which picture? Not a chance. Kinda like my Dodge truck with its factory stereo with "Infinity" speakers. Infinity is known for great audio equipment, but the mass produced crap in the doors of my truck sounds no different then the 20 dollar pair at Wally World. LOL
IMHO, there will be very, very little difference between Macro capabilities in the different point and shoot cameras. Will there be exceptions? Sure. Am I going to wade through 100's of camera reviews?....NOPE. LOL I would suggest throwing a regular 'ol marble in your pocket and heading down to Best Buy or where ever and shoot some pics with the sales representative at the store.