You have enough in those linked discussions to start thinking about it. I'd like to re-assure you that you cannot make a wrong decision, only that it may limit what you do or where you go. Boats of all keel types (and rigs, and capacities, etc.) have successfully crossed oceans and taken on horrible weather. More depends on the crew than the shape of the bottom. Deeper draft (over 5 foot) will limit some of your cruising options, for example, making certain harbors or nice anchorages. Florida and the western Caribbean is notorious for skinny water and a six-foot draft boat limits me to certain inlets. At the same time, offshore in 300+ feet of water, it certainly is nice that I point so well, which makes up for some inconveniences. Every boat is a compromise between performance, cost, capacities, comfort, endurance, reliability, and a dozen other factors.
Thinking of something we all know, a road vehicle, and decide which is "better" for driving on the highway or camping cross-country .... depends on how comfortable, fast, safe, economical, etc. you want to be.