On-topic: I think Europe would be far more feudal than it is today?. Because the New World was the major thing that broke that system up.
The "new monarchies" were already extant before Columbus. The disintegration of the feudal system might have been
slowed by the lack of increased specie (which would mean less power in the hands of merchants), but the Asian trade would have been plenty profitable, and feudalism was primarily a defensively oriented system anyway and thus has less merit as soon as the Great Barbarian Threat disintegrated.
And since much of the New World specie, in the early days anyway (the ones that matter, since we're talking about the disintegration of feudalism), was in the hands of the Spanish and Portuguese monarchs and went towards fueling military conquest instead of stimulating trade, I think that the impact wouldn't be so great in the anti-feudal field. Of more import would be the decreased strength of Spain, and its forced reorienting towards the Far East and Africa, which aren't as immediately profitable due to Portugal's preexisting advantages IMHO. So Spain (as previously noted by more than one person in this very thread) has less ability to maintain a war machine in Europe. They won't be trying to smash France all the time, meaning that the burden of taxes won't be so heavy on the Netherlands. Maybe they won't revolt after all, leaving a more powerful Spain in the mid-term as opposed to being crippled by revolts all over its European empire in the late 16th century and throughout the 17th century.
Based on that, then Poland would've remained strong in the 1600's all the way to WWI, and would've never been partitioned(atleast not successfully) From WWI over, i'm not sure what would happen. WWI would obviously be more bloody and last longer.
*sigh*
Poland's decentralization issues in relation to those of other countries won't magically be overcome by slightly less power in the hands of the merchant classes of
Western Europe. Key instruments in Polish destruction, viz. Sweden, Russia, and the HRE, won't have particularly less power, and Russia in fact may become more important due to its impending control over land routes to the East. So Poland will still be a country stuck on the steppe between multiple enemies with more and better resources, and will still likely be smashed.
TheLastOne36 said:
Interesting to see how important Poland played a role in modern Europe.
Most countries have played a rather important role in modern Europe, even ones outside of Europe itself.

Anyone saying that Poland hasn't played a key role in MEH doesn't know what the hell he or she is talking about.
TheLastOne36 said:
Well here's another scenerio. What if Prussia tried to partition poland with Russia and Austria, and fail, but what if prussia manage to remain independent?
Why would a Partition of Poland ever fail, especially with Prussia, Austria, and Russia cooperating? Specifics plz...is this in your magical "Poland beats all" world, or in the OTL 18th century?
This in turn allowed a quicker development of Europe, to the point were Europe had a sufficient techological advantage to subude asian countries.
Nah. Europe's technological advantage stems from the fact that it's not united, but in fact split between many competing nation-states, all of whom are trying to beat the other ones. What incentive do the Mughals have to technologically improve? The Chinese? In the critical 16th century, neither of these is particularly threatened and thus has no reason to develop. I mean, sure, the fact that all that handy specie and new resources stimulated
added European development, but that was more of an
acceleration as compared with the proximate cause.
And during the 16th and 17th centuries, Europe is already dabbling in Africa, the Indian Ocean, and the Far East, providing some handy technological developments to their clients (like Oda Nobunaga) and proving that Europe
already had an advantage. Sure it won't be a blatant conquest and colonization like it was in the Americas (but then again that was never part of the question) except in the case of Africa, but Europeans will still seize key trade posts and resource repositories, as they did in OTL, and due to increased concentration may even gain more than they did.