Concerning the strength of the Rold's D2, I haven't used mine enough to tell, but look up the reviews on Youtube - it seems to hold up quite well.
Watch the nutnfancy vid (yeah, yeah I know) he pounds on it quite a bit.
I love the shaped handle, it allows multiple grip positions and the wider end of the handle is great for chopping because you don't slip off that.
The handle could be grippier though on both the micarta and the G10 model.
For utility I wouldn't go with a Tanto, drop or spear point works much better for me
How important is wear resistance to you ? Because another blade that I really like is my ESEE Laser Strike. A little shorter than 5", but very stout and great handle too. ESEE 6 would be another contender, or maybe the Ratmandu by SwampRat, supposedly one of the best knives in that size range and their 52100 has a very good rep too.
The ESEEs come with pretty good sheaths too, among the best in production knives IMHO.