To get straight to the point, Dragon Quest III Symphonic Suite contains the best battle theme and the best ending theme in a series full of great examples of both. Almost all of Dragon Quest's battle themes excel at conveying the menace of some lumbering, malevolent beast, but Dragon Quest III's "Fighting Spirit" adds to that a fervor unmatched in its counterparts, from the opening clash of the orchestra to the urgent brass battle rally onwards. A quiet interlude midway through might seem suspect were it not the classic overworld "Unknown World" theme, which shortly later is transfigured into a kinetic, frantic version of itself for a climactic finale.
The ending theme "Into the Legend" serves not only as the subtitle to Dragon Quest III but as the chosen closing selection for some of the series' best collections, and for good reason. Whereas Dragon Quest I's ending theme had a rousing fanfare to its credit, and Dragon Quest II a beautiful, pacifying finale, "Into the Legend" combines and improves upon the best elements of both. Particularly when the brazen opening fanfare returns with booming accompaniment and a tumultuous cascade of strings for the grand finale, the theme conveys the grandeur of an epic fantasy adventure as well as any orchestral ending theme out there.
Supplementing these two all-time classics are a few other standouts. "Prologue" is a new addition to accompany the Super Famicom remake of the game and this London Philharmonic symphonic suite recording, but it's hard to imagine a Dragon Quest III album without the theme's tender woodwinds echoed by oh-so-elegant strings. "Gruelling Fight" (another new addition) doesn't possess the frantic fury of "Fighting Spirit", but the same sense of malevolence is there in its simple but powerful brass call to battle.
Taken for its standout themes alone, Dragon Quest III Symphonic Suite would make a strong case for being the best of the series. However in between those themes, the albums suffers from a slow spell that lasts for a greater part of the middle of the album. If an attentive listen isn't given to the symphonic performance's finer details, the album can frankly be a bit tedious when taken in its entirety. The remaining themes of course have merit, but they're so subdued and similar in tone that it's easy to overlook their qualities. The arrangement for "Dungeon ~ Tower ~ The Phantom Ship" is so passive for its majority that by the time it's finished, the pretty but equally subdued "Distant Memories" is relegated to being little more than a lullaby. "Heavenly Flight" is another pleasant, relaxing piece, but following a string of similarly passive tracks it's difficult to appreciate.
Though the ending and battle themes in Dragon Quest III are spectacular, certain other series staples fail to stand out as much. The baroque string pieces that lead most Dragon Quest symphonic suites are one series tradition I could do without, and Dragon Quest III's inconsequential "Rondo" further convinces me of the notion. Waltzes are another series staple, and though "Sailing" is pleasant enough, it's hard not to compare to Dragon Quest V's livelier, more endearing "Bridal Waltz". "Around the World" makes an admirable attempt at infusing some charisma into the middle part of the score but falls well short of similarly styled medleys in Dragon Quest IV and V.
Classical aficionados appreciative of the subtleties of the form and Dragon Quest regulars accustomed to the pattern of its symphonic suites will be most likely to enjoy Dragon Quest III Symphonic Suite in its entirety. As for series newcomers, those looking to experience a complete Dragon Quest score should probably try the more consistent Dragon Quest IV first, then either continue on to Dragon Quest III or just acquire its standout themes via one of the many best collections available. In any case, anyone with a taste for orchestral adventure absolutely must experience "Fighting Spirit" and "Into the Legend" in some way.