The 3-10 isnt offered with illumination. If you want illumination you will have to get the 4-14 model. Personally I dont think you need illumination UNLESS you are hunting at night with a light. The SHVs allow you to stay out pretty late/early morning just by there light transmission abilities.
The reticle in the 3-10 appears to be smaller than the reticle in the 4-14, Ive had both in hand side by side. If you are planning to punch a good bit of paper I suggest you get the 4-14. The extra power just makes it a little easier.