If we're talking eye candy then to be completely honest I am not a fan of the bolstered look.
I recommend you keep that high on your list. If you don't like the looks of a knife, I think it's hard to like the knife regardless of the performance. This is IMHO and YMMV. But I recommend buying something you like the looks of.
But I just want something really strong in lock strength and the only liner lock that seems to be that strong to me is the one on the Spyderco,
The topic of lock strength will generate a lot of differing opinions. Here are my 2 cents FWIW...
I try hard to not rely on a lock to prevent a folding knife from closing. If I really need a knife that needs to be leveraged down like that, I get a fixed blade. Battoning wood is an example where you often need to press down on the handle to get the blade unstuck. Best done with a fixed blade, imo. All folder locks can fail and typically fail totally and with no warning.
IMO, there two aspects of locks that are more important than their ability to withstand closing forces. The first is reliability. I prefer a locks that are not prone to accidental closures and that give me a good indication while using that something is amiss. I know how to monitor the position of collar locks and lock backs with my thumb. On a collar lock, I monitor the collar's position. On a lock back, I monitor how far the lock bar is rising. I don't know how to monitor a liner/frame lock while cutting. I trust them less. Loads of people like liner/frame locks though so I'll them speak to their experiences.
Second issue with locks to consider is durability. Some locks get less reliable the more you use the knife to cut things with a lot of force or or when the knife develops lateral play. In this regard, I find the Opinel to be more durable than lock backs. Repeated hard cutting doesn't change the lock behavior and they generally don't develop blade play. This is why I prefer them for bushcraft/hard use cutting. I strongly prefer lock backs for hunting and have a soft spot for the 110, which is why I'm carrying that for EDC.
TL/DR: I think lock strength is less important than reliability and durability.
You might look at the Buck Spitfire. Or one of Spyderco's lock backs.
however, "made in China" doesn't really get me all excited over a knife, no matter which brand name is on it. I'd rather not subsidize hostile nations.
I can't get past my underwear or socks when I think along these lines.
The one issue with country of origin and knives that wiggle my needle is with traditional knives. "Opinels" made in Spain bug me. "Buck" knives made in Pakistan bug me. Not because they're junk or the country is "bad" in some way, but I prefer my traditional knives to be from the country that gave birth to them. Just my 2 cents and reasonable people can disagree a lot on this.