A "Hell"thy Fear

During this Lenten journey, I've been following along with the Spiritual Exercises Blog.  Today readers are asked to contemplate hell for the following reason:

We must always be aware that the love of God should be the motive for our actions. However, as we move through this life we may find ourselves assailed by temptations that confuse and weaken us, leaving us unable to enjoy the solace we once had during times when we were more aware of God’s love for us. It will be during these trying times that a simple fear of Hell (and disgust for that which leads to Hell) may augment our efforts and serve to keep us from the downward spiral of sin.

John Brown, SJ, also recommends reading 1-10 of the 32nd chapter of St. Theresa’s Autobiography (http://www.ccel.org/ccel/teresa/life.viii.xxxiii.html).

If here on earth we see one whom we specially love in great trouble or pain, our very nature seems to bid us compassionate him; and if those pains be great, we are troubled ourselves. What, then, must it be to see a soul in danger of pain, the most grievous of all pains, for ever? Who can endure it? It is a thought no heart can bear without great anguish. Here we know that pain ends with life at last, and that there are limits to it; yet the sight of it moves our compassion so greatly. That other pain has no ending; and I know not how we can be calm, when we see Satan carry so many souls daily away.

My mind immediately goes to current debates where those of a more traditional mindset are often charged with being uncompassionate.  After reading the above, I wonder which is the more compassionate approach: 1) affirming sinners in their sin (and thus loving them in a worldly way) or 2) speaking the truth in charity (and thus loving them in a supernatural way in hopes that they may avoid eternal damnation)