You "Blast" ... ? Do you mean using Magic Blast ?

That's indeed a very powerful spell
And for a Ranger (I love it play a ranger!) Explosive Arrows is great and powerful ! But I haven't try Splitting Arrows yet, so I can't say how that skill is ....
If you play a Ranger, take also at least 2 points in Ranger Stealth (passive skill) so you can shoot arrows (AND MAGIC SPELLS !!!) from a greater distance !! I love this skill too
Melee fight I find also big fun, especially with a Axe (or two) or a Two-Handed Sword, but I'm NOT so fast in my hand-eye-coordination ... so I must take skills take give me a little bit more "time". So for me "Stun Arrows" or "Poison Arrows" are also good ones. Last time I find a Jewel with a point in Stun Arrows .