I like your spread, and your reasons. You have similar reasons as me for liking LTC, BTC, and XSPEC. Of those three, XSPEC is definitely my favorite. Undervalued with an active and helpful community, as well as strong privacy features (with more on the way) and low-cost staking rewards, as you've mentioned.

Another favorite of mine is BCH (Bitcoin Cash). I think BCH and LTC are competing for similar marketplaces (everyday low value purchases), and right now BCH is winning (as far as dollar value per unit, by about 10:1). I expect BCH to continue to do well in the future and LTC to continue to play the "catch up" game for some time (a year or two).