Text and numbers below are largely from "1999 Board Reviews - By Ken Winner"

Mistral One Design (years 1989-2005 with big improvements in 1996)
The Olympic board features a design so old you'd think it would start lying about its age. It's not surprising then that it's not too impressive when it comes to overall speed, weight and quickness to plane. On beam reaches and in the turns, this board is competitive, but upwind it's way off the pace. The centerboard well provides a sloppy fit with the centerboard, and the centerboard itself is on the small side. Does any of that matter? Not in the least. The key to this board's popularity is the fun, camaraderie and challenging competition of class racing.
L:372 | B:64 | V:235 | 15,0 Kg ; Power Box (after 1996);

Mistral Equipe II XR (years 1992-1999 with slight modifications)
The Equipe II used to be the board to beat in open-class racing in light to moderate winds, but the competition is tougher now. Still, the Equipe II is competitive upwind in a breeze and on a reach. Moreover, its wide tail makes it arguably the best at getting onto a plane and at sailing a broad reach in marginal planing conditions. Last year's track wasn't working very well with huge rigs - 10.0, 11.0 - so Mistral has returned to an earlier, smoother working track.
L:375 | B:66 | V:258 | 12,9 Kg ; Power box ;       (in 1995 CHS 12,9 Kg and XR 12,5 Kg )

Mistral Superlight II (years 96-99 ? ) is similar to EquipeII (but cheaper & heavier CHS construction)
The Superlight II comes from the same mold as Mistral's Equipe II race board and therefore has great performance potential. Fully equipped with a full-size centerboard, big-blade fin and foot straps, the Superlight II can keep close to all but the lightest, most modern course-racing boards. Simply equipped with no foot straps and a small fin, it's a floaty, stable platform for beginners and a versatile board for more advanced casual users. Given this board's top-notch components, performance that'll please everyone from novice to Olympic-level sailor and an incredibly low price, it has to rate as one of the best bargains on the market. 

Mistral Pan Am (years 2000-2003) is similar to EquipeII
L:375 | B:66 | V:258 | 13,0 Kg ; Power box ;
 
Fanatic Mega Cat 380 (1999)
In a clever move aimed to improve an already good design, Fanatic engineers gave the venerable Mega Cat a face lift - or really, a deck lift. They made it thicker, which gave it more volume (from 250 to 280L), a key to going upwind well. Other strong points are the mast track, which works smoothly under all loads, and a fin and centerboard that are well-shaped and sized. The result is a Mega Cat that's competitive with the AHD Pro Race 380 in overall performance: Exceptional upwind and reaching, and nearly the best in quickness to plane.
L:380 | B:67 | V:280 | 13,2 Kg ; Power Box ; 

AHD Pro Race 380 (years 1997-1999 ?)
Like an NFL linebacker, the Pro Race 380 is big, fast and a bit of a bully. It definitely kicked some butt at the '97 Nationals. Most impressive are its high, boxy rails and huge centerboard. The big centerboard gets the board to rail up easily, and the thick rails give it a long, slim waterline for slicing upwind. The mast track slides smoothly no matter what size sail is on it, and unlike some tracks, it allows the mast to slide way back - good for fast reaching. You can over-fin this board, so stick with something in the 40- to 42-cm range. 
L:380 | B:67 | V:288 | 12,9 Kg ; Tuttle box ;  

F2 Race 380  (years 1998-2000 ?)
L:380 | B:68 | V:290 | 13,9 Kg ; Power Box ; 

F2 Lightning  (years 1992-1995 ?)
L:377 | B:64 | V:249 | 13,2 Kg ; Euro Box ;

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Although all weights are highly suspect (dry/wet ?, with what equipment ?, etc)

Nevertheless here is a very rough look at which raceboards are light for their size :

 

BRAND	MODEL	MODEL YEAR	YEAR REGISTERED	KGS	LTH	WTH	LTRS	weight per vol
AHD	380	1996	1996	12.9	3780	680	288	4.5
LECHNER	L-380	1993	1993	12.0	3790	650	259	4.6
MISTRAL	Equipe II XR	1994	1994	12.2	3750	660	258	4.7
F2	Race 380	1998	1998	13.9	3800	675	290	4.8
FANATIC	Mega Cat 380 HCS	1998	1997	13.2	3800	670	270	4.9
FANATIC	Mega Cat 380	1996	1995	12.5	3800	670	250	5.0
FANATIC	Mega Cat 380 CCS	1997	1997	13.7	3800	670	270	5.1
MISTRAL	Equipe II CHS	1994	1994	13.5	3750	660	258	5.2
F2	Lightning	1995	1994	13.2	3770	640	249	5.3
EXOCET	Pacer 300	2005	2005	14.9	3330	801	270	5.5
MISTRAL	Prodigy	2002	2002	14.8	2946	877	255	5.8
STARBOARD	Z-Class	2005	2004	12.0	2729	1001	206	5.8
MISTRAL	One-Design	1994	1997	15.5	3720	640	235	6.6
NEIL PRYDE	RS:X	2005	2005	15.5	2860	930	220	7.0
ALPHA	RACE 375	1995	1995	15.0	3750	650	210	7.1