In my opinion I wouldn't spread your points out too much. Up until 60+ I had weapons that were far from godly, unenhanced and was full END. I obviously couldn't kill as fast as the next Axe user but I was going after an entire Abyss room by myself and gaining 10% per 15-20 minutes (this is when I got the most exp possible at the level).
Uhm, since I'm guessing you're using the 1H + shield combo I'd go for the STR. Your attack rate is much faster than the 2H which means you will get that constant increase in STR and make up for the slow swing of the 2H. If you switch to 2H while soloing then I'd go for the SPR increase. Getting a high crit with 1H isn't worth that much imo unless you've got it enhanced. But I'll tell you now that a +9 1H sword is the almost equal to an unenhanced green Axe.
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